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David Bernard's book, The Oneness of God, is, in the kindest possible reading, a theologically motivated exercise in confirmation bias dressed up in the costume of systematic theology. He sets out not to discover what the Bible teaches about God but to defend a conclusion already reached. The result is a book riddled with logical fallacies, selective use of evidence, category errors, and interpretive sleight of hand. What follows is a chapter-by-chapter and argument-by-argument analysis. References are drawn from Boyd's Oneness Pentecostals and the Trinity, Grudem's Systematic Theology, and Geisler's Come Let Us Reason Together.

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Who is David Bernard?

David Bernard is an American Oneness Pentecostal theologian. He is the General Superintendent of the United Pentecostal Church International (UPCI), the largest Oneness Pentecostal organization with constituents worldwide. He has written multiple books on the subject of Oneness theology, including the subject of this series of articles, The Oneness of God. For those in The Message or from a Message background, we describe the UPCI as the Message without William Branham.

Response to our analysis from David Bernard

Thank you for the information.

I briefly examined [your] critique. It is thorough and articulate. I would just make a few comments.

He often over-interprets what I say, trying to make me say more than I seek to say.
He assumes I’m always being polemical when I’m not. He says Trinitarians accept many of my statements, as if I don’t realize this. But of course, I do. The book is not merely or primarily written to oppose Trinitarianism but to state the positive doctrine of God in Scripture. It also seeks to correct various other errors, such as Arianism and Unitarianism. To the extent that Trinitarians agree, well and good.
He misunderstands my position as if I deny the two natures formulation of Chalcedon (deity and humanity of Christ in one person), which I don’t, although I prefer different terminology in some cases. He says Oneness and Trinitarianism face many of the same questions regarding the Incarnation and have similar answers, which is my point. That is, Trinitarianism isn’t required in order to answer them.
My book is an entry-level discussion for general readers. He uses many typical Trinitarian philosophical, historical, and exegetical counter-arguments, to which I have responses in other works. For a fuller discussion of my views, answers to most of his points, and scholarly discussions, see my books The Oneness View of Jesus Christ, Oneness and Trinity AD 100-300, The Trinitarian Controversy in the Fourth Century, In the Name of Jesus, and The Glory of God in the Face of Jesus Christ (doctoral thesis).

David K. Bernard, DTh, JD General Superintendent United Pentecostal Church International

Our reply to David Bernard

Dear Dr. Bernard,

Subject: My Critique of The Oneness of God

Thank you for taking the time to read and respond. Your engagement is appreciated, and I will reply to each of your four points directly.

On "over-interpretation"

You suggest the critique frequently makes you say more than you intend. That may be, in specific instances — but this objection, as stated, cannot be proved either right or wrong. Without identifying which arguments were over-interpreted and how, "over-interpretation" functions as a general disclaimer rather than a substantive rebuttal. If there are specific passages where the critique misrepresents your position, I would genuinely welcome that correction and will address it directly. Vague concerns about tone or interpretive excess don't advance the conversation.

On whether the book is primarily polemical

You state that The Oneness of God is "not merely or primarily written to oppose Trinitarianism but to state the positive doctrine of God in Scripture." This is partially fair — the book does include constructive biblical exposition. However, Chapter 11 is a historical argument that Trinitarianism was not "solidly established prior to the end of the fourth century" and that early Christians held essentially Oneness views. Chapter 12 is explicitly titled "Trinitarianism: An Evaluation" and opens with the assertion that "the doctrine of the Trinity conflicts with the biblical doctrine of one God." These are not incidental chapters. They occupy a significant portion of the book and constitute direct polemical engagement with Trinitarian theology.

The critique's engagement with those chapters as polemical is therefore not an assumption — it is a reading of what you actually wrote. If Trinitarians agree with your positive biblical exposition where they can, that is indeed welcome. But the areas of disagreement are precisely the areas your own chapters flag as points of conflict, and those are what I responded to.

On Chalcedon and the two natures

You clarify that you do not deny the Chalcedonian formulation of two natures — divine and human — in one person, though you prefer different terminology. This clarification is noted and accepted at face value.

But it actually sharpens rather than resolves the problem. The difficulty is not whether you affirm two natures in Christ. The difficulty is what "person" means in your system versus what it means in Chalcedonian usage. Chalcedon uses "person" (hypostasis) to designate one of three distinct subsistences within the Godhead. In your framework, there is only one divine person — and that person is Jesus Christ, who is simultaneously identified with the Father. The word "person" is therefore doing entirely different theological work in your system than it does in Chalcedon's.

You cannot simply affirm the language of Chalcedon while radically redefining its central term and then claim agreement. As Gregory Boyd demonstrates in Oneness Pentecostals and the Trinity, the Oneness understanding of "person" collapses the distinction that Chalcedon's formula was specifically designed to preserve — namely, that the eternal Son is a distinct hypostasis from the Father, not a mode or role of the same person. Affirming "two natures, one person" means something categorically different in a Oneness framework than it does in a Trinitarian one.

The point that Trinitarianism and Oneness theology face "similar questions" about the Incarnation and offer "similar answers" is not as much of a concession as it appears as you suggest. Yes, both affirm a genuine Incarnation. But Oneness theology faces a unique problem Trinitarianism does not: if Jesus is the Father, to whom was he praying in Gethsemane? Who forsook whom at Calvary? Trinitarianism's answer — that the eternal Son, a distinct person from the Father, took on human nature and experienced genuine relational communion with the Father — is coherent. The Oneness response requires either modalist redefinitions of those prayer passages or an appeal to the "human nature" of Christ doing the praying, which raises the question of whether that prayer has any genuine divine addressee at all.

On the book being "entry-level" and your other works

With respect, Dr. Bernard, this response cannot bear the weight you place on it. The Oneness of God is your most widely distributed and influential work. It is used in United Pentecostal Church International (UPCI) Bible schools, distributed to seekers and new converts, and constitutes the primary theological statement of Oneness doctrine for the majority of your readers. If its arguments are incomplete, that is not the critic's problem — it is the book's problem.

The invitation to consult five additional books as a precondition for engagement is an argumentative strategy that would permanently insulate any position from scrutiny. There will always be another work where the fuller answer resides. The appropriate response is to identify, in specific terms, where the critique is answered in those other works so that the conversation can continue on concrete ground. A blanket referral to a bibliography is not a rebuttal. Furthermore, several of the critique's core arguments are not peripheral points that require doctoral-level engagement to address — they are fundamental exegetical and historical challenges that The Oneness of God itself raises and should be capable of sustaining. The claim in Chapter 11, for instance, that "the vast majority of all Christians in the early post-apostolic church embraced Oneness views" is a serious historical assertion made in the book under critique, and it deserves to be defended in the terms in which it was offered.

I remain open to continued dialogue and would welcome specific responses to the substantive exegetical and historical arguments raised. The goal here is not polemics for its own sake — it is the truth of who God is and what Scripture actually teaches.

Respectfully,

Rod Bergen

OVERVIEW

You can read our detailed analysis of each of the thirteen chapters (which are listed above); however, overall, there is a fundamental logical flaw that should be considered before you read it.

Bernard's Argument Structure

There is one God — indisputable from Scripture and Jewish tradition - WE AGREE
Jesus is fully divine — in fact, He is the fullness of God incarnate (established across Chapters 4–9) - WE AGREE
Father, Son, and Holy Spirit are the one God (Chapters 1–3) - WE AGREE
Therefore, Father, Son, and Holy Spirit are not three distinct persons but three designations/manifestations of the one God - THIS IS WHERE IT FALLS APART
Therefore, Oneness theology is correct and Trinitarianism is false - HOW DOES HE MAKE THIS LEAP?

The logical leap from premise 3 to conclusion 4 is never bridged. Bernard proves:

God is one — agreed by all monotheists.
Jesus is fully divine — agreed by Trinitarians.
The fullness of God is in Christ — agreed by Trinitarians (Colossians 2:9).

None of these establish that there are no genuine distinctions between Father, Son, and Spirit. The move from "Jesus is the fullness of God" to "therefore Father and Son are not distinct persons" requires an additional premise: that if Jesus possesses the fullness of deity, there can be no genuine distinctions within that deity. Bernard never provides this premise. He assumes it throughout.

Trinitarian theology does not deny that the fullness of deity is in Christ. It affirms this precisely — the Son who became incarnate is homoousios with the Father, fully and truly God. The disagreement between Oneness and Trinitarian theology is whether the divine being who became incarnate in Christ is a being without internal personal distinctions (Oneness) or a being with eternal relational distinctions within perfect unity (Trinitarian). Bernard's exegetical chapters establish the former Trinitarian claim (Jesus is fully God, which is common ground) while assuming the latter specifically anti-Trinitarian claim (therefore no personal distinctions) without arguing for it.

This means the book's entire exegetical case — chapters 4 through 9, the core of the argument — establishes common ground between Oneness and Trinitarian theology, while the specific Oneness claim (no personal distinctions) is the unargued assumption that structures the whole project rather than the argued conclusion it presents itself as being.

The Master Question — across all chapters: Bernard proves that Jesus is fully God and that God is one.

Ask: Where in the book does Bernard argue, from Scripture, that these two truths require denying personal distinctions within the Godhead? Point out that Colossians 2:9 — his go-to text for the fullness of the Godhead in Christ — says the fullness dwells in Christ, not that Christ exhausts all possible distinctions within the divine being. The fullness of an ocean can be in a vessel that is fully filled; that does not mean the ocean has no internal structure or distinction. The premise that "Jesus is the fullness of God, therefore there are no personal distinctions in God" is the entire argument — and it is never actually argued. It is assumed from the first chapter and dressed in different language chapter after chapter. When a Message follower recognizes that this step is missing, the entire architecture of the book collapses, because the Bible's most powerful proof-texts for the full deity of Christ — which Bernard marshals extensively — are exactly what orthodox Trinitarianism has always affirmed.

The Unfalsifiability Problem — Established in Chapter 8's Four Rules, Fully Revealed in Chapter 9

Bernard's interpretive system is constructed so that no NT text can yield a Trinitarian conclusion. Dualities are assigned to humanity/deity; triadic texts are assigned to modes/roles; historical evidence is dismissed as opponent-sourced or potentially interpolated; and in Chapter 9, texts that still resist explanation are reframed as divine tests of sincerity. A theological system that cannot be challenged by any biblical or historical evidence has abandoned the domain of evidence-based argument.

The Consistent Straw Man of Trinitarianism

Throughout the book, Bernard argues against a version of Trinitarianism that is either tritheistic (three separate beings with separate bodies) or philosophically naive (three wills, three minds, three personalities in competition). He rarely engages with the carefully qualified Trinitarian theology of Nicene and Chalcedonian orthodoxy, which has explicit, well-developed responses to every major objection he raises. Grudem's Systematic Theology Chapter 14, Boyd's Oneness Pentecostals and the Trinity, and Geisler's Come Let Us Reason Together together address every one of Bernard's 26 "contradictions" using the resources of Chalcedonian two-nature Christology and Nicene Trinitarian theology.

The Historical Argument Depends on Discredited Sources

The pagan parallels argument relies substantially on the book Two Babylons by Alexander Hislop, a discredited 19th-century polemicist. The early church dominance argument is drawn primarily from a 1978 undergraduate class paper and from Bernard's own prior publications. The historical case for Oneness as the original Christianity and Trinitarianism as a 4th-century pagan innovation rests on foundations no serious historian of Christian doctrine would accept.

The Book's Genuine Strength — And Its Limit

Bernard is at his strongest when demonstrating that the Bible's overwhelming emphasis is on God's unity and on Christ's full deity. Both of these emphases are correct and important. Trinitarianism that slides toward tritheism (which can happen) genuinely needs this corrective. The tragedy is that Bernard uses legitimate corrective emphases to drive toward an illegitimate conclusion — that genuine personal distinctions within the Godhead are impossible. The biblical data he presents in Chapters 1-5 proves that God is one and Christ is fully divine. It does not prove that the Father and Son are the same person. Those two propositions are not the same, and the gap between them is where the entire Trinitarian-Oneness debate actually lives. Bernard's book never genuinely crosses that gap. It circles it for over 170 pages, mistakes proximity for arrival, and declares victory at a destination it never reached.

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