HistoricalChristian.Faith

John Cassian on the Old Testament Canon

Dates: c. 360–435 AD (John Cassian — a monk, probably born in the Roman province of Scythia Minor, who trained in the monasteries of Bethlehem and the Egyptian desert, was ordained at Constantinople and Rome, and about AD 415 founded two monasteries near Marseilles in Gaul. His Institutes and Conferences (Collationes), written c. 420–429, transmit the teaching of the desert abbots to the West and became the charter texts of Latin monasticism — Benedict commended the Conferences for daily reading) · Wikipedia
Verdict on the deuterocanon: YES — cites Wisdom with the "Scripture itself testifies" formula and Baruch as "the prophet"; leaves no canon-list. Cassian draws up no catalogue of the Old Testament books, so he renders no formal canon-verdict. But in the Conferences — the work that carried the desert tradition into Gaul — he quotes the deuterocanonical Wisdom of Solomon under the bare "Scripture" formula, the deuterocanonical Baruch as the word of "the prophet," and the deuterocanonical Sirach beside the apostles among the remedies for sin. He belongs with the broad "using" majority — a Western, monastic voice of the 420s, contemporary with the close of the African councils and with Augustine — who handles the disputed books as Scripture without ever drawing a narrowing list.

Claims & evidence

Wisdom of Solomon cited as "Scripture itself testifies"

In Conference 13 (the second of Abbot Chaeremon's conferences, "On the Protection of God"), arguing that God sometimes works our good against our own will, Cassian quotes the Wisdom of Solomon with the unqualified "Scripture" formula he reserves for the protocanon:¹

… and, while we are rushing headlong towards death, draws us back to salvation, and rescues us without our knowing it from the jaws of hell. For God made not death, neither rejoices in the destruction of the living.

The clause "For God made not death, neither rejoices in the destruction of the living" is Wisdom 1:13, introduced — in the sentence Cassian builds toward it — as that to which "Scripture itself testifies." This is the firmest of his three citations: the disputed book is named "Scripture" outright and pressed into a doctrinal argument about providence, exactly as he would cite Moses or the Gospel.

Baruch quoted as the word of "the prophet"

In Conference 7 (the first of Abbot Serenus's conferences, "On the Changeableness of the Soul and Evil Spirits"), describing the soul that, armed with spiritual weapons, will not be carried off captive into the enemy's country, Cassian quotes the deuterocanonical Baruch as prophecy:²

… nor hear the words of the prophet: Why are you grown old in a strange country?

"Why are you grown old in a strange country?" is Baruch 3:11, and Cassian attributes it to "the prophet" — the same standing he and the earlier Fathers gave the book, which the Greek and Latin tradition reckoned an appendix to Jeremiah and cited under the prophet's name. The witness here is the firmer "named-prophet" kind, like Athenagoras's and Irenaeus's use of Baruch under "the prophets," not a mere woven maxim.

Sirach set beside the apostles among the remedies for sin

In Conference 20 (Abbot Pinufius "On the End of Penitence and the Marks of Satisfaction"), enumerating the many ways by which forgiveness of sins may be obtained, Cassian gathers Sirach into a chain of scriptural proofs alongside the apostles and the Gospel:³

As water extinguishes fire, so does almsgiving extinguish sin.

The maxim is Sirach 3:33 (3:30 in some editions), and it stands in the same series as 1 Peter 4:8 ("charity covers a multitude of sins"), Matthew 6:14 (forgiving others to be forgiven), and James 5:20 (converting a sinner to cover a multitude of sins). The force is the more moderate, woven kind — the Sirach line is braided in with the apostolic texts as authoritative counsel rather than flagged with a separate "it is written" — but the company it keeps tells the same story: Cassian reaches for the disputed book as he reaches for Peter, Matthew, and James.

Notes

• A graded witness, strongest on Wisdom and Baruch. The Wisdom citation ("Scripture itself testifies") and the Baruch citation ("the words of the prophet") are explicit-attribution uses, the firm core; the Sirach line is the softer, woven kind. Together they place Cassian with the broad "using" majority of Greek and Latin Fathers, not with a formal canon-list.
• List versus usage. Cassian compiles no catalogue of Old-Testament books, so he renders no narrowing verdict — the same gap weighed across the timeline between the Fathers who used the disputed books and those who listed a Hebrew-sized canon. His practice falls squarely on the "using" side.
• A Western, monastic datapoint of the 420s. Writing for the monks of Marseilles a generation after Ambrose and alongside Augustine and the African councils, Cassian shows the disputed books functioning as Scripture in the foundational texts of Latin monasticism — the datapoint weighed in the Arguments on whether the early church reckoned these books Scripture.

Sources