Clement (Rome, 92-101), Letter to the Corinthians, Ch 47,
MG 1, 308
It is disgraceful, beloved, very disgraceful, and unworthy of
your training in Christ, to hear that the stable and ancient
Church of the Corinthians ... should revolt against its presbyters.
Ignatius (Antioch, d. 110), Letter to the Trallians, Ch 7;
MG 5, 680
Anyone who is within the sanctuary is pure and anyone who
is outside is impure, that is to say, no one who acts apart from
the bishop and the priests and the deacons has a clear
conscience.