Wherever the bishop shall appear, let the multitude of also be, just as wherever Jesus Christ is, there is the catholic [i.e., universal] church. It is not lawful either to baptize or to celebrate a love feast without the bishop, but whatever he approves of, that is also pleasing to God.
Ignatius of AntiochFor some are in the habit of carrying about the name in wicked guile, while they still practice things unworthy of God. You must flee these as you would wild beasts. For they are ravening dogs, who bite secretly, against whom you must be on your guard, since they are men who can scarcely be cured.
Ignatius of AntiochTake care, then, to be firmly grounded in the teachings of the Lord and his apostles so that you may prosper in all your doings both in body and in soul, in faith and in love, in the Son, and in the Father and in the Spirit, in the beginning and in the end, along with your most worthy bishop and his spiritual crown, your presbyters, and with the deacons, who are men of God.
Ignatius of Antioch