Tertullian's fifth and final book against Marcion works straight through Marcion's own edited edition of Paul's ten epistles, letter by letter, arguing that Paul never taught a second, alien God.
Book Five closes Tertullian's five-book campaign against the second-century teacher Marcion, who had split the Christian God in two: a harsh Creator-god of the Old Testament and a higher, unknown God of love revealed by Christ. Marcion backed this claim with his own trimmed and edited collection of Paul's letters, the Apostolikon, cut to remove anything that tied Paul's gospel back to the Creator or the Jewish scriptures. Rather than debate abstractly, Tertullian takes Marcion's own Pauline canon chapter by chapter -- Galatians, 1 and 2 Corinthians, Romans, 1 and 2 Thessalonians, the letter Marcion called 'to the Laodiceans' (Ephesians), Colossians, Philippians, and Philemon -- and shows that even in its mutilated form the text still confesses the Creator as the one God of both Testaments.
Tertullian opens by demanding Paul's credentials: an apostle who cannot be found on the roll of the Gospels needs some other authority behind him, and Tertullian finds it in Genesis's blessing on Benjamin, 'a ravening wolf,' which he reads as a figure of Saul-turned-Paul. From there the book moves epistle by epistle, meeting Marcion's editorial deletions with counter-readings: bondage 'under the elements of the world' as proof that Paul assumes the Creator's authority over nature; the resurrection of the body defended against a purely spiritual afterlife; the coming of the Lord Jesus 'with the angels of his power and in flaming fire' as a scene of judgment that only the Creator-God's justice explains, restored against Marcion's deletion of 'flame' and 'fire.' The book ends almost incidentally with the brief letter to Philemon, which Tertullian notes escaped Marcion's editing only because it was too short to bother mutilating.
The work matters as a primary witness to the earliest documented dispute over which writings counted as apostolic scripture and in what form. Marcion's Apostolikon is the first attested edited New Testament canon, predating the wider church's four-gospel, thirteen-epistle collection, and Tertullian's chapter-by-chapter rebuttal is essentially a running textual collation -- an ancient source-critic quoting Marcion's cut text against itself. It preserves, second-hand, real information about a lost edition of Paul, and it shows a mid-Roman-Empire Christian writer treating the wording, and even the tally, of scripture as a live battleground rather than a settled inheritance.
“Nothing is without an origin except God alone.”
— Adversus Marcionem 5 - Chapter 1
“Benjamin is a ravening wolf; in the morning he will still be devouring, and at evening he will give out food.”
— Adversus Marcionem 5 - Chapter 1
“I am still speaking after the manner of men: while we were children, we were kept under the elements of the world, in bondage to them.”
— Adversus Marcionem 5 - Chapter 4
“For we who are in this tent groan, being weighed down, not wishing to be unclothed but to be clothed over.”
— Adversus Marcionem 5 - Chapter 12
“This letter alone had its very brevity to thank for escaping Marcion's forging hand.”
— Adversus Marcionem 5 - Chapter 21
Adversus Marcionem ('Against Marcion') is Tertullian's longest surviving work, a five-book refutation of the teacher Marcion of Sinope, who taught that the God of the Old Testament and the God revealed by Christ were two different beings. Books 1-2 attack the idea philosophically and Books 3-4 work through Marcion's edited Gospel of Luke; Book 5 is the capstone, working through Marcion's edited collection of Paul's letters to show Paul never supported the two-god split.
Marcion was a wealthy second-century shipowner-turned-teacher (Tertullian mocks him as a 'Pontic skipper') whose church rejected the Old Testament and circulated its own scripture: an edited Gospel of Luke plus ten letters of Paul, called the Apostolikon. Because Marcion's collection is one of the earliest attested efforts to define a Christian scripture, Tertullian's chapter-by-chapter response is a key source for reconstructing what Marcion's edition actually contained and cut.
In Marcion's order, Tertullian goes through Galatians, 1 and 2 Corinthians, Romans, 1 and 2 Thessalonians, the letter Marcion called 'to the Laodiceans' (usually identified with Ephesians), Colossians, Philippians, and Philemon -- omitting the Pastoral Epistles (1-2 Timothy, Titus), which Marcion did not include at all.
Tertullian opens by pointing out that Paul appears nowhere in the Gospels, so his authority as an apostle needs independent grounding. He supplies it by reading Jacob's blessing on Benjamin -- 'a ravening wolf' who first devours then feeds -- as a prophecy of Saul the persecutor becoming Paul the apostle, and by appealing to the Acts of the Apostles, which Marcion could not deny, as an account both sides accepted.
Repeatedly. In the Thessalonians chapters he notes that Marcion deleted the words 'flame' and 'fire' from Paul's description of the Lord's return in judgment, then argues that the surviving text -- a Lord who repays affliction and gives rest -- still only makes sense as the Creator's own justice, so the cut fails to erase the point it was meant to remove.
Yes, especially in the chapter on 2 Corinthians. He reads Paul's language of being 'clothed over' rather than left 'naked' after death as proof that Paul expected believers to receive their bodies back, not merely to have their souls survive -- directly opposing Marcion's more spiritualized, body-denying view of salvation.
Tertullian notes, almost as an aside, that Philemon -- Paul's short personal letter about the runaway slave Onesimus -- survived in Marcion's collection only 'by its very brevity,' since it was too short to contain anything Marcion needed to cut. He also flags it as odd that Marcion kept this private letter to an individual while rejecting the more doctrinally weighty Pastoral Epistles.
Because Marcion's Apostolikon is the earliest attested edited collection of Paul's letters, Tertullian's running rebuttal preserves indirect evidence about a lost, rival edition of the New Testament from within a few generations of Paul's own lifetime -- making Adversus Marcionem 5 a primary source for the early history of the Christian canon, not just a theological polemic.
Ad Martyras · Ad Nationes 1 · Ad Nationes 2 · Adversus Marcionem 1 · Adversus Marcionem 2 · Adversus Marcionem 3 · Adversus Marcionem 4 · Adversus Praxean · Apologeticum · De Anima · De Baptismo · De Carne Christi