Apostolic Succession

Against the Gnostic appeal to a secret, unverifiable tradition, St. Irenaeus argued that the apostolic faith is public and checkable: the apostles left their teaching to identifiable successors in identifiable churches, whose lists of bishops can be traced. Succession, for Irenaeus, is the guarantee that a church still teaches what the apostles taught — a guardian of public doctrine, not a sacramental mechanism considered in isolation. His treatment in Against Heresies 3.3, including the much-disputed potentior principalitas passage about Rome, must be read alongside 3.4.2, where churches with no Scriptures at all hold the identical faith “without paper or ink.”

Tradition: Pan-Orthodox (Church Father)

The Succession Argument

The logic of Irenaeus’ succession argument is fixed by the problem it answers. The Gnostics claimed an esoteric tradition reaching back to the apostles but transmitted privately, outside the public teaching of the churches. Irenaeus’ reply turns their claim against them:

For if the apostles had known hidden mysteries, which they were in the habit of imparting to the perfect apart and privily from the rest, they would have delivered them especially to those to whom they were also committing the Churches themselves. For they were desirous that these men should be very perfect and blameless in all things, whom also they were leaving behind as their successors, delivering up their own place of government to these men. (Against Heresies 3.3.1; trans. ANF 1)

If there were a secret apostolic doctrine, it would have gone precisely to the men the apostles trusted with their churches — the bishops. But the bishops, whose teaching is on open record, taught nothing of the kind: they were men “who neither taught nor knew of anything like what these [heretics] rave about” (Against Heresies 3.3.1). The succession of bishops is therefore a checkable chain of public teaching, and its content refutes the Gnostic claim by simply existing.

This is the heart of Irenaeus’ conception: succession matters as the guardian of public teaching. The bishop’s role in the argument is epistemic and ecclesial — he is the visible link demonstrating that a given church still holds the faith it received. Irenaeus is not here developing a theory of sacramental ordination considered in abstraction from doctrine; the successions are evidential. They show that “in this order, and by this succession, the ecclesiastical tradition from the apostles, and the preaching of the truth, have come down to us” (Against Heresies 3.3.3; trans. ANF 1). The point of tracing the line is the truth preserved along it, not the line as a mechanism unto itself.

The Roman List, Given “For Brevity”

Irenaeus offers to trace the successions of “all the Churches” but declines on grounds of length:

Since, however, it would be very tedious, in such a volume as this, to reckon up the successions of all the Churches, we do put to confusion all those who… assemble in unauthorized meetings… by indicating that tradition derived from the apostles, of the very great, the very ancient, and universally known Church founded and organized at Rome by the two most glorious apostles, Peter and Paul. (Against Heresies 3.3.2; trans. ANF 1)

Rome is chosen as the worked example — “for brevity,” because to list every church would be tedious — on the strength of three qualities Irenaeus names: it is “very great” (large), “very ancient,” and “universally known,” founded by two apostles whose names everyone knows. He then gives the list: Linus (whom Paul mentions to Timothy), Anacletus, Clement (third from the apostles, who had himself heard them and whose letter to Corinth Irenaeus invokes), Evaristus, Alexander, Sixtus, Telesphorus, Hyginus, Pius, Anicetus, Soter, and “Eleutherius [who] does now, in the twelfth place from the apostles, hold the inheritance of the episcopate” (Against Heresies 3.3.3; trans. ANF 1). Immediately afterward he turns to a second worked example, Smyrna and Polycarp, and then Ephesus — so the Roman list functions within a series, not as a solitary papal proof-text (Against Heresies 3.3.4).

The Potentior Principalitas Passage and Its Disputes

Embedded in the Roman example is one of the most contested sentences in patristic literature. The original Greek of this part of Against Heresies is lost; the sentence survives only in the Old Latin translation, which reads: Ad hanc enim ecclesiam propter potentiorem [or potiorem] principalitatem necesse est omnem convenire ecclesiam. The ANF translators render it:

For it is a matter of necessity that every Church should agree with this Church, on account of its preeminent authority [potiorem principalitatem]. (Against Heresies 3.3.2; trans. ANF 1)

The verbal ambiguities are real, turn on the Latin, and are bound up with what Greek may underlie it. Two readings are advanced, and honesty requires presenting both.

(1) The Roman-primacy reading. On this construal, convenire ad means “to agree with” (or “to resort to”), principalitas denotes pre-eminence of authority, and the sentence asserts that every church must conform to the church of Rome because of its superior authority. This is the rendering the ANF translators adopt (“should agree with this Church, on account of its preeminent authority”), and it is the traditional Roman Catholic reading, taken as an early witness to the Roman primacy of jurisdiction (so, e.g., the Catholic interpretive tradition surveyed in J. Chapman and others; cf. the discussion in Theological Studies 13 [1952], “St. Irenaeus and the Roman Primacy”).

(2) The antiquity / convening reading. On this construal, principalitas renders a Greek word for “origin” or “beginning” (proposed reconstructions include archē, e.g. hikanōteran archēn, “more excellent origin”), so that the phrase means “more ancient” or “more original” foundation rather than greater juridical authority — picking up the “very ancient” quality Irenaeus has just named. Convenire ad is taken in its frequent sense “to come together at / resort to,” so the sentence describes a fact rather than a duty of submission: every church necessarily resorts to Rome — the imperial capital, the great crossroads where believers from everywhere converge — and there the apostolic faith is publicly verifiable, because of (the church’s) more original foundation. On this reading the sentence is part of the evidential argument, not an assertion of Rome’s right to command other churches (this is broadly the reading developed by Orthodox and many Protestant and critical scholars, and the line taken by Behr, Irenaeus of Lyons, who reads the whole chapter as concerned with the public verifiability of apostolic tradition rather than with juridical primacy; cf. Osborn, Irenaeus of Lyons, ch. 7).

A genuinely neutral observation undergirds both: the Greek is lost, so the decisive word — whatever stood behind principalitas — cannot be recovered with certainty, and the Latin itself admits more than one construction. Each reading is therefore a reconstruction, and the passage cannot bear the full evidential weight that polemicists on either side have placed on it. What the immediate context establishes beyond dispute is Irenaeus’ stated reason for choosing Rome: not that it commands the others, but that it is great, ancient, apostolically founded, and known to all — the ideal worked example for an argument about public, traceable tradition (Against Heresies 3.3.2).

Succession as Guardian of Public Teaching

Whichever reading of 3.3.2 one adopts, Irenaeus’ own framing keeps succession tethered to truth. The successions are valuable because they preserve and exhibit the “one and the same vivifying faith, which has been preserved in the Church from the apostles until now” (Against Heresies 3.3.3; trans. ANF 1). Where a bishop departs from that faith, the mere fact of office does not validate him; Irenaeus elsewhere insists that one must follow those presbyters “who, together with the succession of the episcopate, have received the certain gift of truth” — succession and sound teaching together (Against Heresies 4.26.2; trans. ANF 1). Office and orthodoxy are not separable in his argument: the chain testifies to the truth, and the truth authenticates the chain. This is why his succession argument is at once institutional and doctrinal, and why it cannot be reduced either to bare sacramental mechanics or to mere doctrinal agreement abstracted from the visible Church.

The Barbarian Churches: Tradition Without Writing

Irenaeus’ next move guards against any reading that would make tradition a matter of documents or paperwork alone. In Against Heresies 3.4 he poses a thought-experiment: “how should it be if the apostles themselves had not left us writings? Would it not be necessary… to follow the course of the tradition which they handed down to those to whom they did commit the Churches?” (Against Heresies 3.4.1; trans. ANF 1). His answer points to churches that in fact live this way:

To which course many nations of those barbarians who believe in Christ do assent, having salvation written in their hearts by the Spirit, without paper or ink, and, carefully preserving the ancient tradition, believing in one God, the Creator of heaven and earth, and all things therein, by means of Christ Jesus, the Son of God… Those who, in the absence of written documents, have believed this faith, are barbarians, so far as regards our language; but as regards doctrine, manner, and tenor of life, they are, because of faith, very wise indeed. (Against Heresies 3.4.2; trans. ANF 1)

The point is decisive for the Orthodox understanding of paradosis. Tradition is the living transmission of the apostolic faith in the community of the Spirit; the Scriptures are its written core, but the same faith can be — and among these unlettered believers actually is — held intact “without paper or ink.” Succession of teaching, not possession of texts, is the carrier. This is precisely the relation later articulated when Florovsky calls Tradition “Scripture rightly understood” and Lossky calls it “the life of the Holy Spirit in the Church” (see Holy Tradition). Irenaeus’ barbarians, “carefully preserving the ancient tradition,” are the second-century embodiment of that doctrine: the same faith, the same hypothesis, transmitted person to person, generation to generation, guarded by the Spirit rather than by parchment.

Read whole, then, Against Heresies 3.3–4 makes a single, coherent case: the apostolic faith is public and identifiable; it is guarded in the churches the apostles founded, traceable through their bishops; and it is in the end a living truth carried by the Spirit, which can survive even the absence of its own Scriptures — but never the absence of the Church that hands it down.

References

Irenaeus of Lyon. Against Heresies (Adversus Haereses) 3.3.1–4; 3.4.1–2; 4.26.2. Translated by Alexander Roberts and William Rambaut. In Ante-Nicene Fathers, vol. 1. Buffalo: Christian Literature Publishing, 1885. (Latin: potiorem/potentiorem principalitatem, 3.3.2.)
Behr, John. Irenaeus of Lyons: Identifying Christianity. Oxford: Oxford University Press, 2013.
Osborn, Eric. Irenaeus of Lyons. Cambridge: Cambridge University Press, 2001.
Grant, Robert M. Irenaeus of Lyons. The Early Church Fathers. London: Routledge, 1997.
“St. Irenaeus and the Roman Primacy.” Theological Studies 13, no. 3 (1952). [Surveys the competing translations of Against Heresies 3.3.2.]
Florovsky, Georges. Bible, Church, Tradition: An Eastern Orthodox View. Belmont, MA: Nordland, 1972.