An Invitation to Two Billion Christian Brothers and Sisters: One Cannot be Three!

Church of the Holy Sepulcher aerial view in Jerusalem

One Cannot Be Three: A Philosophical and Islamic Theological Refutation of the Trinity

By Claude for Zia H. Shah, MD, drawing on his writings and collection at thequran.love

The Trinity cannot be stated coherently without giving up one of its own commitments. If the three Persons are counted as three, monotheism is lost; if they are one being with one will, their personhood is lost. The Incarnation repeats the same problem. Islamic tawḥīd, supported by the unified lawfulness of the cosmos, offers the simpler and more rational account: one Creator with one will.

The paradox is internal. Classical theology avoids “three Gods” by tying will to nature, so there is one divine will. Yet it calls the Persons distinct centers of consciousness. A person without a will of his own is a person in name only, which drifts toward modalism. Social Trinitarians restore three wills, which critics such as Brian Leftow call tritheism. Christians disagree on exactly this point because no stable middle position exists.
The Incarnation doubles the paradox. Chalcedon (451) assigns incompatible properties to one subject. Constantinople III (680–681) gives that one Person two wills, while the three Persons of the Godhead share one. Morris’s two-minds view leans toward Nestorianism, and kenoticism weakens full divinity.
The Qur’an and the cosmos point to the One. Qur’an 4:171, 5:72–75, 5:116–117, 112:1–4 and 19:88–93 reject the Trinity and divine sonship. Qur’an 21:22, 23:91 and 17:41–44, the argument from mutual hindrance (burhān al-tamānuʿ), and the unity of physical law and of the genetic code all point to one sovereign will. If the Trinity has three wills, the argument applies to it. If it has one, the “three” explain nothing.

Church of the Holy Sepulcher the entrance

Abstract

This article sets out a philosophical and Islamic theological refutation of the Trinity and the Incarnation. It first states the doctrine fairly, then argues that it is paradoxical at three levels:

Counting. One cannot be three.
Personhood. Persons are denied wills of their own, or else tritheism follows.
Christology. Two wills are given to one Person.

The article then examines the two natures of Jesus. Next it presents the Qur’anic critique, with Arabic text, alongside the argument from mutual hindrance, the Muslim polemical tradition, the history of the councils, the Comma Johanneum, and unitarian dissent. Finally it draws on two November 2026 commentaries at thequran.love to argue that natural law, unification in physics, fine-tuning and the genetic code fit one Creator with one will. Throughout, it separates what science establishes from what science merely makes consonant.

I. Introduction

For years I have collected material on the Trinity at The Glorious Quran and Science (https://thequran.love/category/trinity/). In “Trinity: If Muslims and Jews Want to Understand it Without Agreeing” (https://thequran.love/2024/09/16/trinity-if-muslims-and-jews-want-to-understand-it-without-agreeing/), I noted that Oliver Crisp “acknowledges that Trinity is a mystery,” and I commended him because “he strengthens monotheism by weakening the three persons in Trinity.” thequran That remark is this article’s thesis in miniature. My essay “Truth Cannot Contradict Truth: A Comprehensive Theological and Scientific Invitation to Catholic Christians” (https://thequran.love/2025/12/17/truth-cannot-contradict-truth-a-comprehensive-theological-and-scientific-invitation-to-catholic-christians/) supplies its guiding axiom. thequran

II. The Doctrine Under Examination

A. The framing to be critiqued (verbatim)

“The Christian doctrine of the Trinity is formally defined as one God existing as three distinct Persons in one divine being. [sources: https://www.keithferrin.com/blog/simple_explain_trinity , https://en.wikipedia.org/wiki/Trinity] While the word “Trinity” does not appear directly in the Bible, early church theologians developed the phrase to summarize how Scripture describes the Father, the Son (Jesus Christ), and the Holy Spirit. [sources: https://ftc.co/resource-library/blog-entries/the-mysterious-trinity-and-why-it-matters/ , https://www.keithferrin.com/blog/simple_explain_trinity]

How “Being” and “Person” Are Distinguished Theologians avoid contradiction by separating what God is from who God is: [sources: https://www.cru.org/us/en/train-and-grow/spiritual-growth/core-christian-beliefs/understanding-the-trinity.html , https://www.keithferrin.com/blog/simple_explain_trinity]

One Being (Essence). This describes what God is. The Father, Son, and Holy Spirit share a single, undivided divine nature. They are not three separate gods (tritheism) and they are not three “parts” of God. Each is fully God.

Three Persons. This describes who God is. The Father, Son, and Holy Spirit are distinct centers of consciousness who relate to and love one another. They are not merely three different masks, roles, or modes that one person switches between (a view called modalism). [source: https://www.gotquestions.org/God-in-three-persons.html]

Core Principles of the Doctrine As outlined in historic summaries like the Athanasian Creed, the doctrine relies on three foundational truths:

Co-equal. None of the three Persons is greater or lesser in divine nature than the others.

Co-eternal. All three have always existed without a beginning. The Son and the Spirit were not created by the Father.

Distinct in relationship. While unified in essence and will, the Persons hold unique roles. For example, the Father sends the Son, the Son redeems humanity, and the Holy Spirit proceeds from the Father and the Son.

More recently the one will is also denied, as in the details below: In classical Christian theology, the three Persons of the Trinity share one single divine will. Because theologians teach that “will” is a property of a nature (being) rather than a person, having one divine nature means having one divine will.

Why One Divine Will? If the Father, Son, and Holy Spirit had three separate wills, theologians argue it would mean they could potentially disagree or act independently. That would divide the unity of God and turn the Trinity into three separate gods (tritheism).

A Property of Nature. In classical theology, what a being can do—such as thinking, loving, and willing—comes from what it is. Because the Father, Son, and Spirit share the exact same divine essence, they possess one unified faculty of will.

Distinct Ways of Willing. While there is only one divine will, each Person exercises that single will in a way that fits their personal relationship. The Father initiates, the Son carries out, and the Spirit brings to completion, all acting in absolute, inseparable harmony.

The Exception of Jesus’ Human Will A common point of confusion comes from Bible passages like Jesus praying in the Garden of Gethsemane: “Not my will, but yours, be done” (Luke 22:42).

Two Natures in Christ. Classical Christianity teaches that when the Son became human (the Incarnation), he took on a full human nature alongside his divine nature.

Two Wills in Jesus. Because Jesus has two complete natures—divine and human—the Third Council of Constantinople (680–681 AD) affirmed that Jesus has two wills: a divine will (which is the exact same single will shared with the Father and the Spirit) and a human will, which freely submitted to the divine will.

Modern Theological Debates While “one divine will” is the historic standard across Catholic, Eastern Orthodox, and mainstream Protestant traditions, some modern theologians known as Social Trinitarians view the Persons more like a close-knit community or family. In their view, the three Persons have three distinct centers of consciousness and three wills that are always in perfect moral agreement, rather than literally sharing one single faculty of will.”

B. The strongest classical form

Fairness requires three refinements of the framing above:

Persons as relations. For Augustine and Aquinas, the Persons are subsisting relations of origin within one simple essence.
Inseparable operations. Divine acts toward creation are one (opera ad extra sunt indivisa). A research dossier in my collection stresses that “the Trinity claims one undivided act of creation by one God, not three cooperating creators. Missing this invites the ‘strawman’ charge” (https://thequran.love/2026/08/25/research-dossier-one-creator-unified-creation-q-2122-q-3110-11-q-1316-against-polytheism-and-trinitarian-christology/). thequran Wikipedia
Analogy. “Person” applies to God only analogically.

“One God, One Universe” grants that, for Christians, “the three Persons are not three gods, but one God in essence” (https://thequran.love/2025/03/09/one-god-one-universe-coherence-of-monotheism-in-philosophy-theology-and-science/). thequran thequran The question is not whether Christians intend monotheism but whether the doctrine can deliver it.

III. The Paradox of the Trinity

A. First level: one cannot be three

The Athanasian Creed says the Father, Son and Spirit are each God, “and yet they are not three Gods, but one God,” while none of them is either of the others. Read with the “is” of identity, this is inconsistent: if Father = God and Son = God, then Father = Son. “Truth Cannot Contradict Truth” puts the dilemma plainly: “If the Father is God, the Son is God, and the Spirit is God, and they are distinct persons, then there are three Gods. If they are not distinct, then the Father died on the cross, which is the heresy of Patripassianism.” thequran

The Stanford Encyclopedia of Philosophy entry “Trinity,” by Dale Tuggy, records that “popular Latin trinitarianism” is “demonstrably incoherent.” stanford stanford The being/person distinction only names the problem. In “the Father is God,” “God” works as a predicate; in “one God,” it works as a count noun. If “God” means “a divine being,” three Persons are three divine beings. If it means “the one divine individual,” the Persons are identical to one another.

The analytic repairs each fail in a characteristic way:

Relative identity (Geach, van Inwagen). The Persons are “the same God” but not “the same Person.” The pure version depends on denying that there is any “absolute identity.” Michael Rea objects that van Inwagen has not supplied “a plausible and orthodox metaphysical story.” stanford + 2
Constitution Trinitarianism (Rea and Brower). A statue and its bronze count as one object only because they share matter, and God has no matter. Tuggy’s “Constitution Trinitarianism” (2013) judges the resulting account unbelievable. philpapers
Contradictory mysterianism. J. C. Beall defines “a specifically trinitarian concept of identity which is non-transitive,” openly accepting true contradictions. stanford
One-self theories. Leftow’s “A Latin Trinity” (2004) treats the Persons as life-strands of one self. Hasker objects that this “collapses the interpersonal relationships… into God’s relating to himself.” Crisp’s time-travel metaphor belongs to this family. stanford thequran
Three-self theories (Swinburne, Plantinga, Hasker). The SEP notes that “the most common objection to Swinburne’s Trinity theory is that it is tritheism and not monotheism.” Leftow’s “Anti Social Trinitarianism” (1999) argued such views cannot be both orthodox and monotheistic. Brandon Carey (Religious Studies) finds that each available reply “faces serious philosophical problems.” researchgate + 2

Tuggy himself argues that in the New Testament “the one God is not the Trinity but rather the Father alone.” stanford In the 2024 volume One God, Three Persons, Four Views, Hasker, William Lane Craig, Beau Branson and Tuggy still disagree about what the doctrine is. philpeople

Strategy	Protects	Sacrifices	Danger
One-self / Latin	One God	Distinct Persons	Modalism
Three-self / Social	Three Persons	Numerical oneness	Tritheism
Relative identity	Both, verbally	Absolute identity	Incoherence
Contradictory mysterianism	Both, verbally	Non-contradiction	Irrationalism

Abū ʿĪsā al-Warrāq (d. c. 861) saw this long before. He treated the hypostases as “three countable things, which, when added to the substance of the Godhead, make four eternal entities.” uwaterloo

B. Second level: persons without wills

The framing calls the Persons “distinct centers of consciousness who relate to and love one another” while giving them “one unified faculty of will.” But a person, from Boethius to common sense, is a subject who knows and wills, and love is an act of will. If God has literally one act of willing, then:

the Father’s love for the Son and the Son’s love for the Father are one act, not a mutual relation;
the Son’s “obedience” has no second will that could submit;
“initiates,” “carries out” and “completes” describe one act, not three.

William Hasker (“Objections to Social Trinitarianism,” Religious Studies, 2010) states the problem directly: if there is “literally, only one set of mental states between the three Persons, one wonders what the point is of their being three rather than one to begin with.” researchgate

The classical reply is that “person” is used analogically. That reply contradicts the framing’s picture of Persons who love, empties the word of content, and turns a relation into a subject. Paternity does not pray, send or love.

Social Trinitarians therefore restore three wills “always in perfect moral agreement,” which is exactly what the framing itself calls tritheism. Scott M. Williams, defending a “Conciliar Social” Trinity, quotes conciliar sources calling “three personal wills, and three personal operations” “absurd,” and notes that “the ecumenical councils never affirm three divine powers.” asburyseminary Orthodoxy and the leading modern defense of the Persons’ personhood contradict each other on whether the Persons have wills.

Necessary agreement also needs a ground. “Divine Unity, Cosmic Order, and the Grammar of Creation” observes that stipulating that perfect deities “necessarily will exactly the same things” “raises the further question of what individuates the two and why their wills must coincide.” A coordinating higher law “makes the common normative order explanatorily prior to their independent volitions.” thequran So either the wills could diverge, and the mutual-hindrance argument applies, or something prior to them is ultimate. That prior ground is the Qur’an’s One.

C. Third level: Gethsemane and the inverted arithmetic

Constantinople III declared “two natural wills in Him and two natural operations,” with the human will “subject to His divine and omnipotent will.” gotquestions gotquestions

	Persons	Natures	Wills
The Godhead	3	1	1
Jesus Christ	1	2	2

On this scheme, persons do no work in willing. At Gethsemane (“not my will, but yours,” Luke 22:42), the Son’s human will submits to the one divine will, which is also his own, while he addresses another Person who wills nothing the Son does not. The plain reading is simpler: a righteous servant bending his will to his Lord’s. That is how the Qur’an presents Jesus (5:117). quran

IV. Another Paradox Par Excellence: The Two Natures of Jesus

Chalcedon (451) confessed Christ “perfect in Godhead and also perfect in manhood,” “in two natures, inconfusedly, unchangeably, indivisibly, inseparably.” storyofgrace My article “The Paradox of the God-Man: Can Jesus Be Both Perfect Man and Fully Divine?” (https://thequran.love/2025/03/08/12931/) asks “how can one individual simultaneously possess all the limitations of humanity and all the unlimited attributes of divinity?” It calls the claim “analogous to claiming a shape is a square circle.” thequran

Divine	Human	Gospel datum
Omniscient	Limited knowledge	“nor the Son, but only the Father” (Mark 13:32); grew in wisdom (Luke 2:52)
Immortal, impassible	Mortal, suffering	Crucifixion
Necessary, uncreated	Contingent, created	Born of Mary
Omnipotent	Needs food, sleep	Hunger, fatigue
Unchangeable	Grows	Infancy to adulthood
Cannot be tempted	Tempted	Wilderness

By Leibniz’s law, if Jesus has a property God lacks, Jesus is not God. As my article asks, since “persons, not abstract natures, are the subjects who live, know, and die… Did God die on the cross or not?” thequran

Escape routes. Each early heresy dropped one premise:

Arianism (Nicaea, 325) denied full divinity.
Apollinarianism (Constantinople, 381) denied a human mind.
Nestorianism (Ephesus, 431) split Christ into two subjects.
Monophysitism (Chalcedon, 451) merged the natures.

Chalcedon refused every sacrifice and so kept the contradiction. It also divided the Church. Estimates of the non-Chalcedonian Oriental Orthodox churches’ membership range from about 60 to 72 million. “The Paradox of the God-Man” and Simple English Wikipedia give “an estimated 62 million”; English Wikipedia reports that “In 2020, it was estimated that the Oriental Orthodox Churches had 72 million members”; and Pew Research Center (2017) puts the Ethiopian Orthodox Church alone at about 36 million.

Defenses and critics.

Reduplication (“qua God… qua man”) either makes the natures the subjects, which is Nestorian, or leaves one subject with contradictory properties. My article calls it potential “special pleading.” thequran
John Hick (The Myth of God Incarnate, 1977) said that calling Jesus God “is as devoid of meaning as to say that this circle drawn with a pencil on paper is also a square.” galaxie Critics such as Norman Geisler reply that “God” and “man” are less precisely defined than geometric shapes. bethinking krisispraxis But terms too vague to show a contradiction are also too vague to assert a union.
Thomas Morris (The Logic of God Incarnate, 1986) proposes “two distinct ranges of consciousness” with an “asymmetric accessing relation.” Yet Morris concedes that among humans two minds “will suffice for the identification of two persons.” Eleonore Stump asks how a person is “welded together from two minds,” and reviewers note “the appearance of a Nestorian division.” biola + 2
Kenoticism (Philippians 2:7) has the Son set aside divine attributes. On that view Jesus “was not exercising the full divine qualities,” and classical theologians reject it as a breach of divine immutability. thequran

My article ends in a trilemma. Affirming both natures yields contradiction. Resolving the contradiction yields heresy. Appealing to mystery means accepting “a proposition that seems to violate basic logical intuition.” thequran

The created Creator. “Jesus: ‘The Perfect Man and Fully Divine,’ Did not Create Anything” (https://thequran.love/2024/12/23/jesus-the-perfect-man-and-fully-divine-did-not-create-anything/) observes that “the second person of the Triune God could have participated in the creative process, according to the Christian perspective but the human nature could not have.” thequran “Can He Who Creates Be Compared to One Who Cannot Create?” (https://thequran.love/2026/03/20/can-he-who-creates-be-compared-to-one-who-cannot-create/) develops this point: thequran

أَفَمَن يَخْلُقُ كَمَن لَّا يَخْلُقُ ۗ أَفَلَا تَذَكَّرُونَ “Then is He who creates like one who does not create? So will you not be reminded?” (16:17)

هَٰذَا خَلْقُ ٱللَّهِ فَأَرُونِى مَاذَا خَلَقَ ٱلَّذِينَ مِن دُونِهِۦ ۚ بَلِ ٱلظَّٰلِمُونَ فِى ضَلَٰلٍ مُّبِينٍ “This is the creation of Allah. So show Me what those other than Him have created. Rather, the wrongdoers are in clear error.” (31:11) thequran

V. The Islamic Theological Perspective

A. Tawḥīd

قُلْ هُوَ ٱللَّهُ أَحَدٌ ۝ ٱللَّهُ ٱلصَّمَدُ ۝ لَمْ يَلِدْ وَلَمْ يُولَدْ ۝ وَلَمْ يَكُن لَّهُۥ كُفُوًا أَحَدٌۢ “Say, ‘He is Allah, [who is] One, Allah, the Eternal Refuge. He neither begets nor is born, nor is there to Him any equivalent.’” (112:1–4) quran

Each phrase excludes a Trinitarian claim:

Aḥad excludes internal plurality.
Al-Ṣamad excludes Persons who depend on another for their origin.
Lam yalid wa lam yūlad excludes eternal generation.
Kufuwan aḥad excludes a co-equal.

فَاطِرُ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضِ ۚ جَعَلَ لَكُم مِّنْ أَنفُسِكُمْ أَزْوَٰجًۭا وَمِنَ ٱلْأَنْعَـٰمِ أَزْوَٰجًۭا ۖ يَذْرَؤُكُمْ فِيهِ ۚ لَيْسَ كَمِثْلِهِۦ شَىْءٌۭ ۖ وَهُوَ ٱلسَّمِيعُ ٱلْبَصِيرُ “[He is] the Originator of the heavens and the earth. He has made for you spouses from among yourselves, and mates for cattle as well, multiplying you both. There is nothing like Him, and He is the All-Hearing, All-Seeing.” (42:11) quran

ٱللَّهُ لَآ إِلَـٰهَ إِلَّا هُوَ ٱلْحَىُّ ٱلْقَيُّومُ ۚ لَا تَأْخُذُهُۥ سِنَةٌۭ وَلَا نَوْمٌۭ ۚ لَّهُۥ مَا فِى ٱلسَّمَـٰوَٰتِ وَمَا فِى ٱلْأَرْضِ ۗ مَن ذَا ٱلَّذِى يَشْفَعُ عِندَهُۥٓ إِلَّا بِإِذْنِهِۦ ۚ يَعْلَمُ مَا بَيْنَ أَيْدِيهِمْ وَمَا خَلْفَهُمْ ۖ وَلَا يُحِيطُونَ بِشَىْءٍۢ مِّنْ عِلْمِهِۦٓ إِلَّا بِمَا شَآءَ ۚ وَسِعَ كُرْسِيُّهُ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضَ ۖ وَلَا يَـُٔودُهُۥ حِفْظُهُمَا ۚ وَهُوَ ٱلْعَلِىُّ ٱلْعَظِيمُ “Allah – there is no deity except Him, the Ever-Living, the Sustainer of [all] existence. Neither drowsiness overtakes Him nor sleep. To Him belongs whatever is in the heavens and whatever is on the earth. Who is it that can intercede with Him except by His permission? He knows what is before them and what will be after them, and they encompass not a thing of His knowledge except for what He wills. His Kursi extends over the heavens and the earth, and their preservation tires Him not. And He is the Most High, the Most Great.” (2:255) Wikipedia

B. The Qur’anic critique

يَـٰٓأَهْلَ ٱلْكِتَـٰبِ لَا تَغْلُوا۟ فِى دِينِكُمْ وَلَا تَقُولُوا۟ عَلَى ٱللَّهِ إِلَّا ٱلْحَقَّ ۚ إِنَّمَا ٱلْمَسِيحُ عِيسَى ٱبْنُ مَرْيَمَ رَسُولُ ٱللَّهِ وَكَلِمَتُهُۥٓ أَلْقَىٰهَآ إِلَىٰ مَرْيَمَ وَرُوحٌ مِّنْهُ ۖ فَـَٔامِنُوا۟ بِٱللَّهِ وَرُسُلِهِۦ ۖ وَلَا تَقُولُوا۟ ثَلَـٰثَةٌ ۚ ٱنتَهُوا۟ خَيْرًا لَّكُمْ ۚ إِنَّمَا ٱللَّهُ إِلَـٰهٌ وَٰحِدٌ ۖ سُبْحَـٰنَهُۥٓ أَن يَكُونَ لَهُۥ وَلَدٌ ۘ لَّهُۥ مَا فِى ٱلسَّمَـٰوَٰتِ وَمَا فِى ٱلْأَرْضِ ۗ وَكَفَىٰ بِٱللَّهِ وَكِيلًا “O People of the Scripture, do not commit excess in your religion or say about Allah except the truth. The Messiah, Jesus, the son of Mary, was but a messenger of Allah and His word which He directed to Mary and a soul from Him. So believe in Allah and His messengers. And do not say, ‘Three’; desist – it is better for you. Indeed, Allah is but one God. Exalted is He above having a son. To Him belongs whatever is in the heavens and whatever is on the earth. And sufficient is Allah as Disposer of affairs.” (4:171) islamawakened qurano

The verse calls Trinitarianism ghuluww, an excessive elevation of a real prophet. It accepts the titles “His word” and “a spirit from Him” but places them within messengership. “The Singularity of Creation” calls Trinitarian plurality “an ‘excess in religion’ (4:171).” thequran

لَقَدْ كَفَرَ ٱلَّذِينَ قَالُوٓا۟ إِنَّ ٱللَّهَ هُوَ ٱلْمَسِيحُ ٱبْنُ مَرْيَمَ ۖ وَقَالَ ٱلْمَسِيحُ يَـٰبَنِىٓ إِسْرَٰٓءِيلَ ٱعْبُدُوا۟ ٱللَّهَ رَبِّى وَرَبَّكُمْ ۖ إِنَّهُۥ مَن يُشْرِكْ بِٱللَّهِ فَقَدْ حَرَّمَ ٱللَّهُ عَلَيْهِ ٱلْجَنَّةَ وَمَأْوَىٰهُ ٱلنَّارُ ۖ وَمَا لِلظَّـٰلِمِينَ مِنْ أَنصَارٍۢ “They have certainly disbelieved who say, ‘Allah is the Messiah, the son of Mary’ while the Messiah has said, ‘O Children of Israel, worship Allah, my Lord and your Lord.’ Indeed, he who associates others with Allah – Allah has forbidden him Paradise, and his refuge is the Fire. And there are not for the wrongdoers any helpers.” (5:72) quran

لَّقَدْ كَفَرَ ٱلَّذِينَ قَالُوٓا۟ إِنَّ ٱللَّهَ ثَالِثُ ثَلَـٰثَةٍۢ ۘ وَمَا مِنْ إِلَـٰهٍ إِلَّآ إِلَـٰهٌۭ وَٰحِدٌۭ ۚ وَإِن لَّمْ يَنتَهُوا۟ عَمَّا يَقُولُونَ لَيَمَسَّنَّ ٱلَّذِينَ كَفَرُوا۟ مِنْهُمْ عَذَابٌ أَلِيمٌ “They have certainly disbelieved who say, ‘Allah is the third of three.’ And there is no god except one God. And if they do not desist from what they are saying, there will surely afflict the disbelievers among them a painful punishment.” (5:73) quran

Verse 5:72 cites Jesus’s own words, “my Lord and your Lord,” which echo John 20:17 and 17:3. Verse 5:73 rejects God as “one of three,” which is exactly how each Person is described.

مَّا ٱلْمَسِيحُ ٱبْنُ مَرْيَمَ إِلَّا رَسُولٌۭ قَدْ خَلَتْ مِن قَبْلِهِ ٱلرُّسُلُ وَأُمُّهُۥ صِدِّيقَةٌۭ ۖ كَانَا يَأْكُلَانِ ٱلطَّعَامَ ۗ ٱنظُرْ كَيْفَ نُبَيِّنُ لَهُمُ ٱلْـَٔايَـٰتِ ثُمَّ ٱنظُرْ أَنَّىٰ يُؤْفَكُونَ “The Messiah, son of Mary, was not but a messenger; [other] messengers have passed on before him. And his mother was a supporter of truth. They both used to eat food. Look how We make clear to them the signs; then look how they are deluded.” (5:75) quran

This verse is the incompatible-properties argument in compact form: whoever eats is dependent, and the dependent cannot be al-Ṣamad.

وَإِذْ قَالَ ٱللَّهُ يَـٰعِيسَى ٱبْنَ مَرْيَمَ ءَأَنتَ قُلْتَ لِلنَّاسِ ٱتَّخِذُونِى وَأُمِّىَ إِلَـٰهَيْنِ مِن دُونِ ٱللَّهِ ۖ قَالَ سُبْحَـٰنَكَ مَا يَكُونُ لِىٓ أَنْ أَقُولَ مَا لَيْسَ لِى بِحَقٍّ ۚ إِن كُنتُ قُلْتُهُۥ فَقَدْ عَلِمْتَهُۥ ۚ تَعْلَمُ مَا فِى نَفْسِى وَلَآ أَعْلَمُ مَا فِى نَفْسِكَ ۚ إِنَّكَ أَنتَ عَلَّـٰمُ ٱلْغُيُوبِ “And [beware the Day] when Allah will say, ‘O Jesus, Son of Mary, did you say to the people, “Take me and my mother as deities besides Allah?”’ He will say, ‘Exalted are You! It was not for me to say that to which I have no right. If I had said it, You would have known it. You know what is within myself, and I do not know what is within Yourself. Indeed, it is You who is Knower of the unseen.’” (5:116) quran

مَا قُلْتُ لَهُمْ إِلَّا مَآ أَمَرْتَنِى بِهِۦٓ أَنِ ٱعْبُدُوا۟ ٱللَّهَ رَبِّى وَرَبَّكُمْ ۚ وَكُنتُ عَلَيْهِمْ شَهِيدًۭا مَّا دُمْتُ فِيهِمْ ۖ فَلَمَّا تَوَفَّيْتَنِى كُنتَ أَنتَ ٱلرَّقِيبَ عَلَيْهِمْ ۚ وَأَنتَ عَلَىٰ كُلِّ شَىْءٍۢ شَهِيدٌ “I said not to them except what You commanded me – to worship Allah, my Lord and your Lord. And I was a witness over them as long as I was among them; but when You took me up, You were the Observer over them, and You are, over all things, Witness.” (5:117) quran

“Qur’anic Guidance on Reality, Causality, and Divine Unity” (https://thequran.love/2025/05/05/quranic-guidance-on-reality-causality-and-divine-unity/) notes that al-Ṭabarī and al-Rāzī read 5:116 as “closing all doors to shirk,” not as placing Mary in the Trinity. thequran Jesus’s words “I do not know what is within Yourself” are the Qur’anic counterpart of Mark 13:32.

وَقَالُوا۟ ٱتَّخَذَ ٱلرَّحْمَـٰنُ وَلَدًۭا ۝ لَّقَدْ جِئْتُمْ شَيْـًٔا إِدًّۭا ۝ تَكَادُ ٱلسَّمَـٰوَٰتُ يَتَفَطَّرْنَ مِنْهُ وَتَنشَقُّ ٱلْأَرْضُ وَتَخِرُّ ٱلْجِبَالُ هَدًّا ۝ أَن دَعَوْا۟ لِلرَّحْمَـٰنِ وَلَدًۭا ۝ وَمَا يَنۢبَغِى لِلرَّحْمَـٰنِ أَن يَتَّخِذَ وَلَدًا ۝ إِن كُلُّ مَن فِى ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضِ إِلَّآ ءَاتِى ٱلرَّحْمَـٰنِ عَبْدًۭا “And they say, ‘The Most Merciful has taken [for Himself] a son.’ You have done an atrocious thing. The heavens almost rupture therefrom and the earth splits open and the mountains collapse in devastation that they attribute to the Most Merciful a son. And it is not appropriate for the Most Merciful that He should take a son. There is no one in the heavens and earth but that he comes to the Most Merciful as a servant.” (19:88–93) quran

بَدِيعُ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضِ ۖ أَنَّىٰ يَكُونُ لَهُۥ وَلَدٌۭ وَلَمْ تَكُن لَّهُۥ صَـٰحِبَةٌۭ ۖ وَخَلَقَ كُلَّ شَىْءٍۢ ۖ وَهُوَ بِكُلِّ شَىْءٍ عَلِيمٌۭ “[He is] Originator of the heavens and the earth. How could He have a son when He does not have a companion and He created all things? And He is, of all things, Knowing.” (6:101) quran

Even if “eternal generation” is not biological, begetting means sharing the begetter’s nature. The Creator of all things relates to all things as Creator, not as progenitor.

إِنَّ مَثَلَ عِيسَىٰ عِندَ ٱللَّهِ كَمَثَلِ ءَادَمَ ۖ خَلَقَهُۥ مِن تُرَابٍۢ ثُمَّ قَالَ لَهُۥ كُن فَيَكُونُ “Indeed, the example of Jesus to Allah is like that of Adam. He created him from dust; then He said to him, ‘Be,’ and he was.” (3:59) quran

If being born without a father proved divinity, Adam, who had neither father nor mother, would have the stronger claim. quran The research dossier notes that al-Ṭabarī reads kalimah and rūḥ as describing Jesus’s mode of creation, “in exactly the same way that Adam was.” thequran

C. The argument from mutual hindrance

لَوْ كَانَ فِيهِمَآ ءَالِهَةٌ إِلَّا ٱللَّهُ لَفَسَدَتَا ۚ فَسُبْحَـٰنَ ٱللَّهِ رَبِّ ٱلْعَرْشِ عَمَّا يَصِفُونَ “Had there been within the heavens and earth gods besides Allah, they both would have been ruined. So exalted is Allah, Lord of the Throne, above what they describe.” (21:22) thequran quran

مَا ٱتَّخَذَ ٱللَّهُ مِن وَلَدٍۢ وَمَا كَانَ مَعَهُۥ مِنْ إِلَـٰهٍ ۚ إِذًۭا لَّذَهَبَ كُلُّ إِلَـٰهٍۭ بِمَا خَلَقَ وَلَعَلَا بَعْضُهُمْ عَلَىٰ بَعْضٍۢ ۚ سُبْحَـٰنَ ٱللَّهِ عَمَّا يَصِفُونَ “Allah has not taken any son, nor has there ever been with Him any deity. [If there had been], then each deity would have taken what it created, and some of them would have sought to overcome others. Exalted is Allah above what they describe.” (23:91) quran

وَلَقَدْ صَرَّفْنَا فِى هَـٰذَا ٱلْقُرْءَانِ لِيَذَّكَّرُوا۟ وَمَا يَزِيدُهُمْ إِلَّا نُفُورًۭا ۝ قُل لَّوْ كَانَ مَعَهُۥٓ ءَالِهَةٌۭ كَمَا يَقُولُونَ إِذًۭا لَّٱبْتَغَوْا۟ إِلَىٰ ذِى ٱلْعَرْشِ سَبِيلًۭا ۝ سُبْحَـٰنَهُۥ وَتَعَـٰلَىٰ عَمَّا يَقُولُونَ عُلُوًّۭا كَبِيرًۭا ۝ تُسَبِّحُ لَهُ ٱلسَّمَـٰوَٰتُ ٱلسَّبْعُ وَٱلْأَرْضُ وَمَن فِيهِنَّ ۚ وَإِن مِّن شَىْءٍ إِلَّا يُسَبِّحُ بِحَمْدِهِۦ وَلَـٰكِن لَّا تَفْقَهُونَ تَسْبِيحَهُمْ ۗ إِنَّهُۥ كَانَ حَلِيمًا غَفُورًۭا “We have set things out in various ways in this Qur’an so that they may take heed, but it only increases their aversion. Say, ‘Had there been other gods besides Him – as they claim – then they would have certainly sought a way to the Lord of the Throne.’ Glory be to Him! He is exalted far above what they say – exalted beyond measure! The seven heavens and the earth and all that is in them glorify Him. There is nothing that does not celebrate His praise, but you do not understand their glorification. He is truly Forbearing, Forgiving.” (17:41–44) thequran

The mutakallimūn formalized these verses: al-Juwaynī, al-Ghazālī, al-Rāzī, al-Māturīdī in Kitāb al-Tawḥīd, and al-Taftāzānī in Sharḥ al-Maqāṣid. “The Architecture of Divine Unity” (https://thequran.love/2026/11/12/the-architecture-of-divine-unity-a-scientific-philosophical-and-theological-commentary-on-quranic-monotheism/) lays out the three possible outcomes if God A wills motion and God B wills rest: thequran

Both prevail, which is impossible. thequran
Neither prevails, and “an entity… whose power can be blocked, cannot be an omnipotent God.” thequran
One prevails, and the loser is “weak, limited, and subjugated.” thequran

It also cites al-Rāzī’s point that even “an ordinary household… cannot function smoothly if it has two supreme heads.” thequran The research dossier gathers the classical exegetes. Al-Ṭabarī speaks of “counteractive forces.” thequran Al-Zamakhsharī speaks of two kings’ “mutual vying (taghālub), mutual rejection (tanākur), and disagreement (ikhtilāf).” Al-Qurṭubī says one god would be “rendered incapable (ʿājiz).” Ibn Kathīr links 21:22 to 23:91. thequran thequran

Muslims debated the proof’s strength. “Divine Unity, Cosmic Order, and the Grammar of Creation” (https://thequran.love/2026/11/12/divine-unity-cosmic-order-and-the-grammar-of-creation-a-scientific-philosophical-and-theological-commentary-on-qur%ca%bean-2122-2391-and-1741-44/) records that al-Taftāzānī judged one construal “persuasive rather than a formally conclusive demonstration.” thequran The dossier adds that Ibn Rushd judged the kalām version “dialectical and non-demonstrative.” thequran Grammar of Creation insists that tamānuʿ is not “the childish thought that ‘two gods would quarrel’.” Its point is modal: two agents cannot each have “unrestricted, independent efficacy with respect to the very same total reality while remaining genuinely capable of contrary determinations.” thequran

Application to the Trinity. The dossier concedes that the argument’s “cleanest target is polytheism/tritheism.” thequran Section III supplies the missing premise. If there are three wills, the argument applies directly. If there is one will, only that will is sovereign, and the Persons drop out of the explanation.

Avicenna’s Necessary Existent, as Architecture summarizes it, adds a further point. Multiple necessary beings “would have to share the attribute of ‘necessity’ while differing in some other attribute,” which makes them composite and therefore contingent. thequran “The Singularity of Creation” (https://thequran.love/2026/02/21/the-singularity-of-creation-a-scientific-philosophical-and-theological-refutation-of-trinitarian-plurality-through-the-lens-of-quranic-monism-and-cosmic-unity/), following al-Kindī, draws the consequence: “if the Persons are ‘essence + distinctive property,’ they are composed, hence caused, hence not eternal.” thequran

D. The classical Muslim polemical tradition

Abū ʿĪsā al-Warrāq (d. c. 861) wrote the Refutation of the Three Christian Sects. Its editor, David Thomas, calls it “the longest sustained attack on the Trinity to survive from the early centuries of Islam.” After describing Melkite, Jacobite and Nestorian teaching carefully, al-Warrāq argues that the hypostases are either additions to the substance or not truly distinct. uwaterloo cambridge
Al-Bāqillānī (d. 1013) refuted Christian doctrine in al-Tamhīd.
Al-Ghazālī (d. 1111) is the traditional, though disputed, author of al-Radd al-Jamīl, which argues from the Gospels themselves that texts such as John 10:30 are metaphorical. archive krisispraxis
Fakhr al-Dīn al-Rāzī, according to “Qur’anic Guidance,” held any attribution of divinity to another to be “logically untenable.” thequran
Ibn Taymiyya (d. 1328), in al-Jawāb al-Ṣaḥīḥ, held that “all aspects of the Trinitarian doctrine are contrary to the teachings of all Prophets and even against the teachings of Christ.” iium

These thinkers argued that the Trinity “either collapses into tritheism… or into absurdity if one insists three are really one.” thequran This is the same dilemma the SEP describes today.

E. How the doctrine developed

The word “Trinity” is not in the Bible. Tertullian first uses the Latin trinitas in Adversus Praxean, written around 213 CE (as dated in Verbum et Ecclesia, “The praxis of Adversus Praxeam”), speaking of “trinitas unius divinitatis, Pater et Filius et Spiritus sanctus” (Adv. Prax. 21).
Jesus called the Shema (Deuteronomy 6:4) the first commandment (Mark 12:29).
Nicaea (325) declared the Son homoousios with the Father, against Arius. The decision was contested for decades, and Athanasius was exiled five times.
Constantinople (381) added the Spirit’s full divinity, so the classical Trinity became dogma about 350 years after Jesus.
Ephesus (431), Chalcedon (451) and Constantinople III (680–681) followed, each causing a schism.

“The Future of Islam and the Future of Humanity” (https://thequran.love/2025/04/14/the-future-of-islam-and-the-future-of-humanity/) notes that the formulation “required centuries of debate and multiple Church councils.” thequran

The Comma Johanneum. The Bible’s only explicit Trinitarian verse, 1 John 5:7 in the KJV (“the Father, the Word, and the Holy Ghost: and these three are one”), is regarded by modern textual critics as a Latin interpolation. andrews Wikipedia As Bruce Metzger’s Textual Commentary on the Greek New Testament states, “The passage is absent from every known Greek manuscript except eight,” it “is quoted by none of the Greek Fathers,” and “Its first appearance in Greek is in a Greek version of the (Latin) Acts of the Lateran Council in 1215.” Erasmus added it in 1522 on the basis of Codex Montfortianus. Wikipedia Newton noted that during the fourth-century controversies “this text of the ‘three in heaven’ was never once thought of.” cyberistan

F. Unitarian Christians

“Truth Cannot Contradict Truth” stresses that rejecting the Trinity “is not solely an ‘Islamic’ position.” thequran

Michael Servetus argued in De Trinitatis erroribus (1531) that the Trinity is unscriptural. Denounced by Calvin, he was burned near Geneva on 27 October 1553. britannica uusavannah
Isaac Newton. “Isaac Newton’s Theological Beliefs” (https://thequran.love/2025/04/21/isaac-newtons-theological-beliefs-rejecting-the-trinity-in-favor-of-pure-monotheism/) shows that his “private writings from the 1670s through 1690s unequivocally reject the Trinity.” “The Unity of the Divine Will” (https://thequran.love/2026/01/02/the-unity-of-the-divine-will-an-exhaustive-analysis-of-isaac-newtons-unitarian-monotheism-prophetic-historicism-and-the-convergence-with-the-islamic-paradigm/) says he “sought the Unity of the Cosmos in the law of gravity, and the Unity of God in the rejection of the Trinity.” thequran thequran
John Locke. In “Are Trinitarian Christian Scientists Promoting God of Judaism, Islam and Unitarian Christianity?” (https://thequran.love/2024/04/03/are-trinitarian-christian-scientists-promoting-god-of-judaism-islam-and-unitarian-christianity/), I quote the Britannica: Newton sent Locke a manuscript arguing that Trinitarian passages were “latter-day corruptions,” then “withdrew in fear that his anti-Trinitarian views would become known.” thequran
Others. William Whiston lost his Cambridge chair over the doctrine. Wikipedia Thomas Jefferson rejected it. thequran The philosopher Dale Tuggy moved from Trinitarianism to biblical unitarianism. 21stcr

The Newton study concludes: “Newton’s God – and the Allah of the Quran – is the Absolute Monarch. His will is singular. Therefore, the laws of gravity must be universal.” thequran

VI. How Scientific Realities Deny the Dogma of the Trinity

This section draws on two commentaries on 21:22, 23:91 and 17:41–44, both dated 12 November 2026. Grammar of Creation (presented by ChatGPT for Zia H. Shah MD) is cautious. Architecture (presented by Gemini for Zia H. Shah MD) claims “direct empirical testament.” thequran thequran

A. Method

Grammar of Creation: “Modern science neither proves nor disproves this theological conclusion. It does, however, disclose a universe characterized by striking lawful coherence.” It warns that reading 21:22 as “regular laws, therefore one God” would be “too quick.” thequran Architecture invokes Ibn Taymiyya’s principle that decisive reason and authentic revelation “can never contradict one another because both originate from the exact same source.” On that basis it treats 21:22 as “a profound scientific and rational axiom.” thequran My own view lies between them. Science cannot deduce God, but the pattern it reveals fits one sovereign will, and no datum is better explained by three Persons.

B. Uniformity of natural law

Architecture asks what many divine sources would predict, such as “regions of space where the speed of light fluctuates wildly.” Instead, quasar spectra show “hydrogen atoms in the deepest reaches of the observable universe operate under the exact same quantum mechanical rules as hydrogen atoms on Earth.” It reads 23:91 as predicting “distinct… domains governed by entirely disparate physical laws,” whereas “the laws of thermodynamics apply equally in the Andromeda galaxy as they do on Earth.” It cites Paul Davies on the laws’ “unified structure,” and Richard Swinburne’s Ockham’s-razor case for “a single, omnipotent Creator.” thequran

That last argument turns against the Trinity. If simplicity favors one Creator over many, it also favors one Person over three. Swinburne’s argument for exactly three Persons comes from reflection on love, not from physics, and Leftow objects that it “jeopardizes the personhood of each.” stanford

C. Unification and intelligibility

Grammar of Creation traces unification through Newton’s gravitation, Maxwell’s electrodynamics, relativity and electroweak theory, while cautioning that “there is no consensus that all sciences must reduce to one theory.” thequran “Singularity of Creation” treats the plurality of forces as a “broken symmetry”: “the universe does not speak in three voices; it speaks in one.” thequran thequran Grand Unified Theories are unconfirmed, so the defensible claim is narrower: discovery has moved steadily from apparent plurality toward deeper unity, with no hint of a tri-personal structure.

“The Miracle of a Readable Universe” (https://thequran.love/2026/10/24/the-miracle-of-a-readable-universe/): “One Lawgiver means one law. The unity physicists keep finding in nature is the fingerprint of tawhid.” thequran Grammar of Creation recalls Wigner’s “unreasonable effectiveness” of mathematics. It grants that this “neither… entails theism” but calls it “consonant with the unity of a rational Creator.” It also clarifies that the fasād of 21:22 is not entropy or decay, which “are described by the same physical framework that describes stable systems.” Rather, fasād “concerns incoherence of ultimate governance.” thequran

D. Fine-tuning

Architecture describes the constants as “balanced on a razor’s edge.” It cites Roger Penrose’s estimate of 1 in 10^(10^123) for the low-entropy initial state and concludes that “only absolute Oneness can account for absolute precision.” thequran Grammar of Creation adds several cautions: thequran

Planck data show ΛCDM fits “excellently,” while dark matter and dark energy “remain fundamentally unexplained.” thequran
Fine-tuning “does not itself establish a designer.” thequran
The “120 orders of magnitude” figure “depends on the assumed cutoff.” thequran
Weinberg used anthropic reasoning to bound the cosmological constant. thequran
Barnes catalogues fine-tuning, but Adams shows life-permitting structure “across substantial regions of parameter space,” and Harnik, Kribs and Perez model a universe with stars but no weak force. thequran
Multiverse explanations face “a serious measure problem,” and George Ellis presses the question of testability. thequran

Fine-tuning can be read as an āyah, but “an āyah… is not equivalent to a laboratory demonstration.” thequran Penrose himself is not a theist. Whatever force fine-tuning has, it supports one selecting intelligence, and nothing in the parameters suggests three.

E. Biology: one code, one tree

Grammar of Creation relies on Mora, Tittensor, Adl, Simpson and Worm (“How Many Species Are There on Earth and in the Ocean?”, PLoS Biology, 2011), which “predicts ∼8.7 million (±1.3 million SE) eukaryotic species globally, of which ∼2.2 million (±0.18 million SE) are marine”; “nine million” is shorthand for eukaryotes only. Across them, the genetic code “is virtually universal,” and its deviations are “secondary modifications of a common code.” “Singularity of Creation” puts the point sharply: “If there were three creators, there would be three codes.” All life traces to one Last Universal Common Ancestor, and “the ‘Tree of Life’ does not have three trunks; it has one.” The essay asks why a “relational” triune God would produce “a strictly monogenetic biological tree.” thequran thequran

Grammar of Creation cites D. L. Theobald’s “A formal test of the theory of universal common ancestry” (Nature 465:219–222, 13 May 2010), which found “overwhelming support for universal common ancestry”; as Science News summarized, “A universal common ancestor is at least 10^2,860 times more probable than having multiple ancestors.” Koonin and Wolf criticized its method but agreed that the evidence is “overwhelming.” Common ancestry “can strengthen rather than weaken the theological motif of unity.”

Architecture goes further. It cites Freeland and Hurst’s “The Genetic Code is One in a Million,” later optimality estimates “closer to 1 in 2 billion,” and Yockey’s claim that “information… requires an intelligent source,” and it argues against “blind” evolution. thequran I side with Grammar of Creation here. It notes Koonin and Novozhilov’s evolutionary accounts of the code and says it “would be scientifically inaccurate to say that the genetic code shows that evolution is ‘blind’ and therefore false.” Its careful thesis is: “the shared molecular grammar and common ancestry of life can, within an Islamic metaphysics of creation, be received as signs consonant with the unity of the Creator.” thequran Even on that reading, life has one grammar, one tree and one history, and no triadic signature.

F. Tasbīḥ

Architecture distinguishes tasbīḥ lisān al-maqāl, praise in speech, from tasbīḥ lisān al-ḥāl, praise through a creature’s very state: its “exact adherence to the physical and biological laws decreed by God constitutes their glorification.” thequran Grammar of Creation records al-Qurṭubī’s tasbīḥ al-dalāla, in which a creature “by what it is, bears witness to its Creator.” It also notes two readings of 17:42: rival gods seeking a way against the Throne, or seeking nearness to it. Either way, “neither can be an absolutely independent deity.” thequran The second reading fits Jesus, who prays to the Father.

G. The argument stated

The cosmos is one lawful order: uniform laws, unification, intelligibility, and one genetic grammar on one tree of life.
Within theism, one lawful order is best explained by one sovereign will (21:22, 23:91, tamānuʿ, Avicenna, Ockham).
If the Trinity has three wills, step 2 counts against it.
If it has one will, the three Persons explain nothing and are superfluous.
No datum is better explained by a tri-personal Creator.
Therefore, read theistically, creation supports tawḥīd over the Trinity.

VIII. Thematic Epilogue: The Grammar of One

The Christian creed begins, “We believe in one God.” The Muslim confession begins, Lā ilāha illā Allāh. Both start from the One and part over whether the One can also be Three.

In logic, one cannot be three, and every repair saves either the One or the Three, never both. In personhood, the doctrine must choose between three wills, which means three gods, and one will, which leaves persons in name only. Its own defenders take opposite sides. In Christology, the Church confesses one Person with two wills in Christ and three Persons with one will in God.

Against this the Qur’an sets one sentence: Qul huwa Allāhu aḥad. It honors Jesus as Word, Spirit and Messiah, and places him where his own prayers placed him, before “my Lord and your Lord.” On the Last Day he will say, “You know what is within myself, and I do not know what is within Yourself.”

The cosmos speaks the same language. From the hydrogen lines of quasars to the codons of the ribosome, creation shows multiplicity within unity: countless creatures, one law; endless forms, one code. As Grammar of Creation puts it, “Reality is not ultimately a battlefield of independent absolutes.” thequran Nor is it a committee. Newton, who saw the unity of the heavens, saw the unity of God the same way, and had to hide it.

“There is nothing that does not celebrate His praise.” The stars do not praise a Trinity, and the code of life is written in one hand. If truth cannot contradict truth, the Book of Nature and the Book of Revelation agree: He is One, and there is none like Him.