Here’s a claim that should make you sit up.
A group of trained philosophers—people who love the early church and read its councils closely—now argue those councils never taught what most Christians assume they did. On their reading, the councils didn’t say God is 1 being who exists as 3 persons. They said the one God is the Father. The Son and the Spirit share the Father’s very nature, fully and eternally—but neither of them is “the one God”.
This project has a name: Conciliar Trinitarianism.
If it’s right, a great deal of what ordinary Christians sing, pray and confess is a later Western mistake. And notice who has begun echoing the argument already. People who deny the Trinity altogether have picked it up and now use it in debates and videos: They say, even your own councils say the one God is the Father alone.
So what is Conciliar Trinitarianism? How much of it’s actually true? And does it survive being laid alongside the Bible?
Eight words you will need
| WORD | WHAT IT MEANS IN PLAIN ENGLISH |
|---|---|
| Council | A formal meeting of church leaders called to settle a disputed question of doctrine. |
| Ecumenical council | A council recognised as speaking for the whole church, not just one region. 7 are usually listed, from AD 325 to AD 787. |
| Creed | A short, agreed summary of Christian belief, written to be recited and remembered. |
| Trinitarianism | The belief that the one God exists eternally as three persons: Father, Son and Holy Spirit. |
| Essence (or nature) | What something is. The divine essence is what makes God to be God: eternal, almighty, unchanging. |
| Person (Greek: hypostasis) | Not a separate individual with a separate mind and will, but a distinct “who” within the one God. |
| Homoousios | Greek for “of the same substance”. The word Nicaea chose to say the Son is not merely like God—He is God. |
| Monarchy of the Father | From monos (one) and arche (source). The teaching that within God the Father is the source from whom the Son is eternally begotten and the Spirit eternally proceeds. |
What Conciliar Trinitarianism means
The phrase is used in 2 different ways, and almost every online argument mix the 2 together.
The first use is simply a method. Take everything the first 7 ecumenical councils said about the Trinity, add it all together, and treat that total as the thing to be explained. On this use, “Conciliar Trinitarianism” isn’t a rival doctrine at all. It’s a body of evidence. Scholars who disagree sharply with one another can all be working on it.
The second use is a specific conclusion. It says when we read those councils on their own terms, what they actually teach is this: there’s one God, the Father; and there are 2 other divine persons, the Son and the Spirit, who share the Father’s nature completely but aren’t themselves “the one God”. This second view is also called monarchical Trinitarianism. It’s presented as the older, Eastern way of speaking, which the Latin-speaking West is said to have quietly abandoned.
The difference matters enormously, so it’s worth setting out side by side.
| QUESTION | SENSE 1: A METHOD | SENSE 2: A CLAIM |
|---|---|---|
| What it is | A collection of everything the seven councils said about the Trinity | A particular answer to what those councils meant |
| Is it controversial? | No. It’s just careful historical reading. | Yes. It’s disputed even by the scholars who helped launch the discussion. |
| Who is “the one God”? | The question is left open for study | The Father, and the Father alone |
| Should we welcome it? | Largely yes. History before philosophy is a good instinct. | No—and the rest of this article explains why. |
When someone online tells you “Conciliar Trinitarianism proves your church is wrong”, they’re almost always sliding from the first sense to the second without telling you.
Where the term came from
The phrase is recent. Philosopher Timothy Pawl had already coined “Conciliar Christology”—meaning the sum of what the councils taught about the person of Christ. Following that pattern, a 2020 special issue of the journal TheoLogica, edited by Beau Branson, Joseph Jedwab and Scott M. Williams, defined Conciliar Trinitarianism as the conjunction of the claims about the Trinity made in the first seven ecumenical councils.
Their complaint was a fair one. Much modern philosophy of religion had been treating the Trinity as a logic puzzle—3 persons, 1 God, how can the maths work?—while paying little attention to the historical setting in which the doctrine was hammered out. Philosophers were arguing over stray sentences from later Western creeds instead of reading the councils themselves.
But here’s the detail that rarely makes it into the online version. The scholars in that project don’t agree with each other. Beau Branson reads the councils as teaching the one God is the Father. Timothy Pawl, working on exactly the same texts, doesn’t reach that conclusion. Scott M Williams argues in a different direction again. So “Conciliar Trinitarianism”, in the second sense, is one contested interpretation among several—not the settled verdict of scholarship.
WATCH FOR THIS MOVE
A method is presented as a conclusion. The neutral project—”let’s read the councils carefully”—is quietly swapped for one man’s answer to what the councils mean. Once you notice the swap, most of the rhetorical force drains away.
The monarchy of the Father: what the councils genuinely say
Now for the uncomfortable part. A good deal of what this school says is true, and much of the church has forgotten it.
The word “monarchy” here has nothing to do with the Father ruling over the Son as a king rules subjects. It comes from two Greek words meaning “one source”. It describes where the persons come from within God’s own eternal life. The Father is from no one. The Son is eternally begotten of the Father. The Spirit eternally proceeds. There’s a real order here—theologians call it taxis—and it never changes and never began.
The Nicene Creed opens exactly as our critics say it does: “We believe in one God, the Father Almighty.” That isn’t an accident, and we mustn’t pretend otherwise. Gregory of Nazianzus, one of the sharpest minds of the fourth century, spoke of the Father as the source of the Godhead, and said the moment he thinks of the One he is at once flooded by the light of the Three.
Our own confessional documents say the same thing. The Westminster Confession states the Father is of none, the Son is eternally begotten of the Father, and the Holy Spirit eternally proceeds. Herman Bavinck called the doctrine of the Trinity nothing less than “the heart of the Christian religion”—and that heart includes this eternal order, not just a bare arithmetic of three-in-one.
So let’s be candid. Where modern evangelicalism has treated eternal generation as an optional extra, or quietly dropped it, the criticism is deserved. Recovering it isn’t a concession to the East. It’s a return to our own confession.
But notice what the same creed goes on to say in the very next breath. The Son is “God from God, Light from Light, true God from true God, begotten, not made, of one substance with the Father.” The Council of Constantinople in 381 then said of the Holy Spirit He is worshipped and glorified together with the Father and the Son. We don’t worship creatures. Or glorify junior partners.
So the creed places the Father first as source, and in the same sentence places the Son and the Spirit on the same side of the line that divides God from everything else. Both halves are there. The argument we’re examining keeps the first half and lets the second half go quiet.
“One God, the Father”: the argument from 1 Corinthians 8:6
Everything eventually rests on one verse. The Apostle Paul writes:
“yet for us there is one God, the Father, from whom are all things and for whom we exist, and one Lord Jesus Christ, through whom are all things and through whom we exist.”
1 Corinthians 8:6, ESV
Read quickly, it looks decisive. One God—and that God is named as the Father. Jesus gets a different title, “Lord”. Case closed?
No. In fact this verse is one of the strongest arguments against the position it’s used to support, once we know what Paul is doing with it.
Every Jew in the world knew the Shema, the confession recited daily from Deuteronomy 6:4: “Hear, O Israel: The LORD our God, the LORD is one.” 2 words carry the weight there—God and LORD. Both belong to the one God of Israel. There’s no third option.
Now look again at what Paul does. He takes the ancient confession and opens it up, placing the Father under the word “God” and Jesus under the word “LORD”—and closes it again. As Richard Bauckham has argued, Paul isn’t putting Jesus outside the one God. He’s putting Jesus inside the unique identity of the one God of Israel. For a first-century Jew, that’s not demotion. It’s the most extraordinary thing we could possibly say about a man from Nazareth.
And Paul adds a detail we mustn’t ignore. All things exist through Jesus. Creation is the work of God alone. Nothing that was made shares in making everything.
| THE CLAIM MADE | THE TEXT APPEALED TO | WHAT THE TEXT ACTUALLY SAYS |
|---|---|---|
| Only the Father is “the one God” | 1 Corinthians 8:6 | Paul divides the Shema and puts Jesus inside it as the one Lord. Both titles belong to Israel’s God. |
| The Son is God’s agent, not God | 1 Corinthians 8:6 | All things exist through Him. Creating is something only God does (Isaiah 44:24). |
| The Father alone is called “God” | Whole New Testament | Thomas answers Jesus, “My Lord and my God!” (John 20:28). The Father says of the Son, “Your throne, O God, is for ever and ever” (Hebrews 1:8). |
| The Son’s life is derived, so lesser | John 5:26 | The Father “has granted the Son also to have life in himself”—the very quality that separates God from creatures is the Son’s own. |
| The Spirit is divine but not God | Acts 5:3-4 | Lying to the Holy Spirit is, in the same breath, lying to God. |
Where the model breaks: 4 problems
The case has real strengths. But it fails at 4 points, and any 1 of them would be serious. Together they’re decisive.
1. Which councils? The problem of the seventh
The whole framework treats the first 7 councils as the standard by which everything is measured. That raises an obvious question its defenders rarely face in public: why 7?
The seventh of those councils met at Nicaea in AD 787. Its subject wasn’t the Trinity at all. It was images. That council decreed pictures of Christ and the saints should be set up in churches and given honour and veneration.
We can’t accept the package and hold the second commandment as it stands. If the 7 councils are the norm, then image-veneration comes with them. If you’re free to reject the seventh, you’ve just conceded the underlying point—that a council isn’t the final court. And once you’ve conceded that, the entire argument loses its foundation, because its whole force came from saying the councils settle it.
The Westminster divines were blunt about this. Councils may err, and many of them did. They’re servants of Scripture, never its judge. That isn’t disrespect for the councils; the church owes them an enormous debt. It’s a statement about who has the last word.
2. The missing creed
There’s a second problem: the definition is drawn in such a way the most awkward evidence falls outside it.
The Athanasian Creed says, in words no one can mistake, that in this Trinity “none is before or after another; none is greater or less than another.” That’s precisely the sentence a monarchical reading has to explain away. And it doesn’t have to—because the definition of Conciliar Trinitarianism excludes it. The Athanasian Creed is Western and wasn’t produced by 1 of the 7 councils, so it’s ruled out before the discussion begins.
The same fence removes the whole Western tradition of reflection that followed. A boundary that’s drawn exactly where the contrary evidence sits isn’t neutral history. It’s a conclusion built into the method.
3. Sharing a nature you are not
The third problem is about coherence, and it needs one more idea explained: divine simplicity. This means God isn’t made of parts. His power isn’t 1 component and His love another. God isn’t a container holding attributes; He is what He has.
That matters here. If God is simple, the divine essence isn’t a shared substance that 3 individuals each own a copy of, the way 3 men each possess humanity. There’s only one God, whole and undivided.
So what happens when someone says the Son is homoousios with the one God, but is not the one God? The Son either possesses the whole undivided divine essence—in which case He is the one God, and the claim collapses—or He possesses something less, in which case He isn’t truly God at all. There’s no stable middle. The word “God” ends up functioning as a title that only the Father wears, while the Son is left holding the nature without the name.
This is why the model works so well as a halfway house. Whatever its authors intend, it hands opponents of the Trinity exactly the vocabulary they want. That’s not an accusation of bad faith. It’s an observation about where the road leads.
4. Scripture keeps refusing to co-operate
The last problem is the plainest. If the Father alone is the one God, the New Testament should be careful never to give the Son and the Spirit what belongs to God alone. It does it constantly.
- Thomas falls before the risen Christ: “My Lord and my God!” (John 20:28). Jesus commends him rather than correcting him.
- The Father Himself addresses the Son as God: “Your throne, O God, is for ever and ever” (Hebrews 1:8), and then applies to Him a psalm about the LORD who laid the foundations of the earth.
- Paul waits for “our great God and Saviour Jesus Christ” (Titus 2:13).
- In Him the whole fullness of deity dwells bodily (Colossians 2:9)—not a portion, not a reflection.
- Peter tells Ananias he has lied to the Holy Spirit, and in the next sentence, that he has lied to God (Acts 5:3-4).
These aren’t obscure proof-texts dug out of corners. They’re load-bearing walls. A model of the Trinity has to be able to house them without wincing.
John Calvin, “autotheos”, and the charge of innovation
There’s one more accusation to answer. The charge is that John Calvin invented something new and un-Nicene when he insisted the Son is autotheos—a Greek term meaning “God of Himself”. Calvin taught that as to His essence, the Son is God in His own right, not by receiving deity as a gift. Eternal generation concerns the Son’s person, His relation to the Father—not a handing over of divinity from one to another. Critics say this quietly cancels the monarchy of the Father and makes three Gods.
Three things need saying.
- Calvin was answering a real heretic, not scoring points. Valentine Gentile was arguing only the Father is God in the full sense, and that the Son holds a derived, second-rank divinity. Calvin saw where that ends. If the Son’s deity is something handed down, it can be measured, and whatever can be measured can be found smaller.
- Calvin didn’t deny eternal generation. He affirmed the Son is eternally begotten. What he refused was the idea that begetting means the essence itself is passed along, as though divinity flowed from one person into another. Person, yes. Essence, no.
- The distinction protects the very thing the objection claims to defend. Only if the Son possesses the undivided divine essence in Himself can “none is greater or less” be true. Take that away and the order within God stops being an order of origin and becomes a ranking.
BB Warfield judged Calvin’s insistence on this point to be a turning point in the history of the doctrine—not a departure from Nicaea, but a defence of what Nicaea was for.
So the honest verdict is this. We hold both truths together, and refuse to trade one for the other: the Father is the eternal source within the Godhead, and the Son is God of Himself as to His essence. Drop the first and you get a flat, orderless God unknown to Scripture. Drop the second and you’re on the road to Arius.
How the doctrine was settled: a short timeline
- AD 325—Nicaea. Against Arius, who taught the Son was made. The council answers with homoousios: the Son is of one substance with the Father, “true God from true God”.
- AD 381—Constantinople. The creed is expanded to confess the Holy Spirit as Lord and giver of life, worshipped and glorified together with the Father and the Son.
- AD 431—Ephesus. Defends the unity of Christ’s person against Nestorius. The one born of Mary is the eternal Son.
- AD 451—Chalcedon. 1 person, 2 natures, without confusion or division. The classic statement of who Christ is.
- AD 553 and 681—Constantinople II and III. Further clarifications on Christ’s person and His 2 wills, divine and human.
- AD 787—Nicaea II. Not about the Trinity. It decrees the veneration of images—the point at which the “7 councils” package parts company with the second commandment.
Why this isn’t the same as “eternal subordination”
One clarification, because readers who followed the evangelical arguments of 2016 may be confusing 2 very different debates.
In that dispute, Wayne Grudem and Bruce Ware argued the Son is eternally subordinate to the Father in role or authority, often in order to settle arguments about men and women. Carl Trueman and Liam Goligher pushed back hard, and the recovery of classical language by writers such as Matthew Barrett, Fred Sanders and Scott Swain followed.
That’s a different error from the one in view here, and in a sense the opposite one. Eternal subordination keeps one God and puts a chain of command inside Him. Monarchical Trinitarianism keeps the equality of nature but narrows the title “the one God” down to the Father. Both go wrong at the same place: they turn the eternal order of origin into a difference of status.
The old confession refuses both. The Father is the source. The Son and the Spirit are in no way less.
WHAT WE AFFIRM—AND WHAT WE DENY
We affirm there is 1 God, and that He exists eternally as 3 persons: Father, Son and Holy Spirit.
We affirm the monarchy of the Father: within God, the Father is the source from whom the Son is eternally begotten and the Spirit eternally proceeds. This order is real and eternal.
We affirm each person possesses the whole undivided divine essence. None is greater or less than another.
We affirm the councils of the early church rendered the church magnificent service, and that we ignore them to our loss.
We deny the title “the one God” belongs to the Father alone, with the Son and the Spirit excluded from it.
We deny that the Son’s deity is derived, borrowed or second-hand.
We deny any council, or any set of 7 of them, stands above Scripture as the final judge of what Christians must believe.
So—is Conciliar Trinitarianism biblical?
Part of it is. The monarchy of the Father is genuine, ancient and confessional, and where we’ve forgotten it we should be grateful for the reminder. The instinct to read the councils in their own setting, rather than mining them for slogans, is a good instinct.
But the central claim isn’t biblical, and doesn’t follow from the councils it appeals to. It survives only by keeping half of the Nicene Creed, fencing out the creed that contradicts it, and asking us to accept as final a set of councils whose last member we could never accept.
More importantly, it can’t hold the Bible. It can’t comfortably let Thomas say “My Lord and my God”. It can’t let the Father call the Son “God” in Hebrews 1. It can’t let Peter treat a lie to the Spirit as a lie to God. When a model of God requires the Scriptures to speak more quietly, the model is what must go.
The God who has made Himself known is one—and the Father, the Son and the Holy Spirit are each fully, equally and eternally that one God. That’s not a puzzle to be solved. It’s the truth we were baptised into. And it’s a truth to die for.
Tough Questions, Honest Answers
Did the Council of Nicaea invent the Trinity, or vote that Jesus is God?
No. Nicaea didn’t create a new belief; it defended an old one with a new word. Christians were worshipping, praying to and baptising in the name of Jesus long before AD 325, as the New Testament itself shows. What the council faced was a clever teacher, Arius, who used biblical language while emptying it of meaning. So the bishops chose a term Arius could not twist—homoousios, “of one substance”—to state plainly what the church had always believed. The vote was overwhelming, and it settled wording, not the fact of Christ’s deity.
What did Jesus mean when He said, “the Father is greater than I” (John 14:28)?
He was speaking as the one who had taken our nature and was on His way to the cross. In that same Gospel Jesus says He and the Father are one (John 10:30), and receives worship from Thomas without correcting him. So “greater” cannot mean greater in nature, or John has contradicted himself in a few chapters. It refers to the Son in His humbled, sent condition—and, in the older reading, to the Father as the eternal source from whom the Son is begotten. Greater in order and in the circumstances of His mission; never greater in deity.
Is the filioque biblical, and does it really matter?
The filioque is the Latin phrase meaning “and the Son”, added in the West to say that the Spirit proceeds from the Father and the Son. It has scriptural support: Jesus calls the Spirit the one He Himself will send from the Father (John 15:26), and the Spirit is called the Spirit of Christ (Romans 8:9). Our confession affirms it. That said, the way it entered the creed—unilaterally, without a council—was a genuine grievance, and honesty requires admitting so. The doctrine is defensible; the procedure was not.
Do Orthodox and Protestant Christians believe in the same Trinity?
On the essentials, yes. Both confess one God in three persons, both hold the Son to be of one substance with the Father, and both stand on the creed of 325 and 381. The real differences lie in emphasis and in two specific points: the filioque, and how far the Father is described as the source of the Godhead. These are not nothing, and they have shaped very different traditions of worship. But they are disagreements between people confessing the same triune God, not a disagreement about whether God is triune.
If Jesus is the “only begotten” Son, does that mean He had a beginning?
No—and this is exactly the mistake Nicaea was called to correct. Human begetting happens at a moment, and produces someone younger than the parent. God is eternal, so nothing in Him happens at a moment. The Son is begotten of the Father eternally, with no time when He was not. The old illustration is still the best one: light does not exist before its radiance, and the sun is never a sun without shining. The Greek term also carries the sense of “one of a kind”—the Son is not the first of a series but the only one of His kind.
Is the Athanasian Creed authoritative if no council produced it?
It is authoritative in exactly the way every creed is—not because of who wrote it, but because it says what the Bible says. Athanasius did not write it, and no ecumenical council issued it, yet it has been received across the Western church for well over a thousand years because it summarises Scripture with unusual precision. Its statement that none in the Trinity is greater or less than another is not an invention; it is the necessary conclusion of texts like John 1:1 and Colossians 2:9. A creed has authority as a faithful witness, never as an independent source. That principle applies to councils too.
Does the Seventh Council (AD 787) on images bind Christians today?
We do not believe it does. That council required the veneration of images of Christ and the saints, and we judge that requirement to be contrary to the second commandment, which forbids not only worshipping false gods but worshipping the true God by means of images. This is not a small disagreement, and we do not pretend otherwise. It also shows something important: a council is a gathering of fallible men, and the church has always had to weigh what councils say against Scripture. Where a council agrees with the Bible we gladly receive it; where it does not, Scripture governs.
Related Reads
- The Filioque Clause: Why Reformed Circles Support the Addition
- Social vs Classical Trinitarianism: Does God Have One Will or Three?
- The Covenant of Redemption: A Guide to the Pactum Salutis
- Defending the Trinity: Biblical Answers to Common Objections
- Did Constantine Or the Church Invent the Trinity? What History Shows
- Oneness Pentecostalism vs the Trinity: A Biblical Response
