The early Church understood conciliar authority as grounded in apostolic tradition transmitted through episcopal succession, not in the mere number of bishops assembled or in imperial endorsement. Cyprian, presiding over North African synods in the mid-third century, insisted that a council's binding force depended on its fidelity to the whole catholic church — schismatic gatherings that inflated their own numbers were exposed as diabolical frauds with no authority over the unified body. Irenaeus had earlier rooted this in apostolic succession itself: the authority of bishops in council derived from their unbroken connection to the apostles' teaching and oversight. Councils were not optional advisory bodies but essential expressions of collective episcopal vigilance, guarding the church's unity, holiness, and apostolic mark against fragmentation and heresy.
Exposes schismatic assemblies as having no authority over the united catholic church: "they, as children of the devil, and full of lies, dared to boast that there were present twenty-five bishops" — true conciliar authority resides in the unified episcopate's fidelity to tradition, not in numbers claimed by a factional gathering.
Roots the authority of bishops and their collective judgments in unbroken apostolic succession — bishops in council exercise the oversight the apostles entrusted to them, exposing heretical teachings through the church's scriptural and successional chain.
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