Marcion’s Canon: The First Bible List (3 of 6)

The first person to draw up a fixed list of Christian Scripture was excommunicated for it.

That is not an incidental detail. The church did not begin by defining its collection. It began by using one, and it was forced into defining it by a man attacking it.

Who Was Marcion?

A shipowner from Sinope on the Black Sea, wealthy, capable, and by AD 144 out of the Roman church.

He was not a fringe figure and his movement was not small. Marcionite congregations persisted for centuries, with their own bishops and their own liturgy. Whatever else he was, he was a formidable organiser.

What Was in Marcion’s Canon?

Eleven books, and the shape of the list is the argument.

One Gospel, a version of Luke with the material he objected to removed. Ten letters of Paul, without the Pastorals.

That is the whole of it. No Matthew, Mark, or John. No Acts. No Hebrews, no Catholic epistles, no Revelation. And no Old Testament at all.

Why Did Marcion Reject the Old Testament?

Because he concluded it described a different God.

His position was that the God of the Hebrew Scriptures, the creator, was a lesser and inferior being, just but harsh, bound up with matter and law. The Father Jesus revealed was a different and higher God, previously unknown, characterised by mercy rather than justice.

Once you hold that, everything else follows. The Old Testament goes, because it belongs to the lower God. Most of the apostles go too, because Marcion judged that they had misunderstood Jesus and dragged Jewish assumptions into the message. Paul alone, on his reading, got it right, which is why Paul is the only apostle in his collection.

The editing follows the same logic. Passages that connected Jesus to the creator or to Israel’s Scriptures were removed as corruptions introduced by Judaizers.

Why Was Marcion the Turning Point?

Because he did something nobody had done: he closed a list.

Before Marcion, the churches had authority in practice. Certain documents were read, quoted, and treated as decisive, and no one had needed to enumerate them because no one was seriously contesting the boundary.

Marcion contested it. He produced a defined collection, argued for it, and built an organisation around it. That forced the churches to say out loud what they had been doing silently.

The irony is considerable. The man attacking the Christian Scriptures very likely accelerated their formal definition. His movement outlasted him by centuries. His list did not survive its own century as a serious rival.

What Were the Rival Scriptures?

Other movements in the same period produced writings of their own, claiming secret apostolic pedigree, and this is where a great deal of modern argument lands.

The argument behind them has a name. Walter Bauer proposed that diverse beliefs, each claiming to be Christian, came before any notion of orthodoxy, and he built the case from four regional centres. In Egypt he saw an early Gnostic presence with no clearly orthodox representative until Demetrius of Alexandria late in the second century. In Edessa he argued that Marcion’s teaching was the earliest form of Christianity there. Rome, on his reading, asserted authority as early as Clement and eventually imposed its version on everyone else.

The objections are substantial and worth stating rather than assuming.

The reconstruction leans heavily on argument from silence. An absence of evidence for orthodox Christianity in a region does not establish that something else dominated it. The geographical compartmentalising also understates how much early Christian communities communicated with each other.

And there is a methodological asymmetry running through it. Gnostic and Marcionite sources are taken largely at face value while orthodox sources are read with suspicion, and that asymmetry is doing a lot of the work.

On the dating, the pattern in the Gnostic texts themselves is the strongest evidence. They presuppose and rework canonical Gospel material, using familiar people and events and reinterpreting them through a different cosmology. A text that reframes a story is later than the story.

So the position this series takes is that Gnostic teaching developed as a reinterpretation of existing Christian material rather than alongside it. That is a conclusion with real support and it is not universally held, and anyone reading in this area will meet the other case.

How Do We Know What the Churches Were Reading?

Because someone described a Sunday service.

Justin Martyr, writing around the middle of the second century, describes Christians assembling on the day named after the sun, where the memoirs of the apostles or the writings of the prophets are read for as long as time permits, followed by teaching and prayer.

Two things in that sentence. He calls the memoirs of the apostles Gospels. And he places them alongside the prophets in the same reading, which means they were functioning at the same level as the Hebrew Scriptures in worship.

That is canonisation happening in practice, described by an eyewitness, before anyone had produced a list.

What Was the Diatessaron?

A harmony of four Gospels woven into one continuous narrative, produced by Justin’s student Tatian around 175.

It cuts in both directions and both should be said.

It proves the four were established. You cannot harmonise four authoritative Gospels unless you have four authoritative Gospels, and Tatian took precisely those four.

It also reveals discomfort with their fourness. Producing a single narrative out of four accounts responds to a felt problem, the sense that the gospel ought to be one book. The Diatessaron became the standard Gospel text across the Syriac-speaking east for generations.

Honest both directions: the four were settled, and their multiplicity still itched.

Part of a series on how the New Testament came together, following the canon timeline.

Sources

Justin Martyr, First Apology 66 to 67. Supports the description of Sunday reading and the identification of the memoirs of the apostles as Gospels. Free in full at the Christian Classics Ethereal Library.

Tatian, Diatessaron, c. 175. Supports the existence of a four-Gospel harmony and its dominance in the Syriac east.

Andreas J. Köstenberger and Michael J. Kruger, The Heresy of Orthodoxy (Crossway, 2010), 24-26. Supports the summary of the Bauer thesis and its four regional centres.

Craig A. Blaising, “Are There Conflicting Theologies in the Bible?” in In Defense of the Bible (B&H Academic, 2013), 384. Supports the account of what Bauer claimed for Marcionism and Gnosticism as earliest regional forms.

Where the sourcing stops: Marcion’s own writings are entirely lost, so every description of his teaching comes from opponents. That limitation is severe and should be attached to any account of him, including this one. The section on rival scriptures is deliberately incomplete pending a proper treatment.

Footnotes

1. That we know Marcion only through his critics is the single largest weakness in any account of him. Tertullian wrote five books against him and is our fullest source, which means the most detailed description of Marcion’s position was written by a man devoted to destroying it. The broad outline is corroborated across several opponents, which helps, but the nuance is unrecoverable.
2. The Diatessaron’s long dominance in the east is worth its own study. For generations, Syriac-speaking Christians encountered the Gospels primarily as one continuous narrative rather than as four accounts, and separating them again took deliberate effort.