Here, even the great theologian Jerome asks Pope St. Damasus to clear up a point of theological confusion.  The year is 376 AD.

'I think it my duty to consult the chair of Peter, and to turn to a church whose faith has been praised by Paul. I appeal for spiritual food to the church whence I have received the garb of Christ. The wide space of sea and land that lies between us cannot deter me from searching for "the pearl of great price." "Wheresoever the body is, there will the eagles be gathered together." Evil children have squandered their patrimony; you alone keep your heritage intact....

'Yet, though your greatness terrifies me, your kindness attracts me. From the priest I demand the safe-keeping of the victim, from the shepherd the protection due to the sheep. Away with all that is overweening; let the state of Roman majesty withdraw. My words are spoken to the successor of the fisherman, to the disciple of the cross. As I follow no leader save Christ, so I communicate with none but your blessedness, that is with the chair of Peter. For this, I know, is the rock on which the church is built! This is the house where alone the paschal lamb can be rightly eaten. This is the ark of Noah, and he who is not found in it shall perish when the flood prevails. But since by reason of my sins I have betaken myself to this desert which lies between Syria and the uncivilized waste, I cannot, owing to the great distance between us, always ask of your sanctity the holy thing of the Lord. Consequently I here follow the Egyptian confessors who share your faith, and anchor my frail craft under the shadow of their great argosies. I know nothing of Vitalis; I reject Meletius; I have nothing to do with Paulinus. He that gathers not with you scatters; he that is not of Christ is of Antichrist.'