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The Claims of Rome and Eastern Orthodoxy  /  Apostolic Succession – Part 2  /  Discussion Questions
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Question 6
Bercot argues that Irenaeus’s appeal to “succession” is about doctrinal continuity and blameless conduct, not sacramental validity, indelible grace, or automatic efficacy; if Irenaeus is using succession mainly as evidence against Gnostics who “popped up out of nowhere,” what would be a faithful modern equivalent of his test for apostolicity?
Another way to ask: If Irenaeus uses “succession” to show steady teaching and good conduct (not automatic sacramental power), what would be a faithful modern way to test whether a church is truly apostolic? What signs would you look for today, especially against groups that appear suddenly with new teachings?

Direct Answer A faithful modern equivalent, in Bercot’s framing, would test whether a church holds “the doctrine of the apostles” and shows “blameless conduct,” rather than relying on unverifiable ordination chains. In other words: apostolicity is measured by continuity of teaching and life, especially compared to groups that invent doctrine and appear without connection to historic Christian faith.

Support from Transcript:

  • Irenaeus urges obedience to presbyters “who… possess the succession from the apostles” and says they display “sound speech and blameless conduct.”
  • Bercot explains Irenaeus’s argument: succession is “strong evidence” those churches teach what the apostles handed down, unlike Gnostics who “popped up out of nowhere.”
  • He stresses what Irenaeus does *not* say: nothing about ordination as sacrament, who ordained whom, “indelible mark,” valid Eucharist, or automatic sacramental grace.
  • Bercot summarizes: Irenaeus’s succession is “collective rather than individual” and concerns “doctrinal truth and life, not the validity of the sacraments.”
  • He adds the argument “loses its validity after a century or two” because later churches changed doctrine.
Discussion Follow-ups What doctrines or moral fruits would you use as “apostolic” benchmarks? How do we test continuity without pretending we can recreate the year 180?

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