“It is my purpose to write an account of the successions of the holy apostles, as well as of the times which have elapsed from the days of our Saviour to our own; and to relate the many important events which are said to have occurred in the history of the Church; and to mention those who have governed and presided over the Church in the most prominent parishes, and those who in each generation have proclaimed the divine word either orally or in writing… When Nero was in the eighth year of his reign, Annianus succeeded Mark the evangelist in the administration of the parish of Alexandria…Linus …was Peter’s successor in the episcopate of the church there…Clement also, who was appointed third bishop of the church at Rome.” Eusebius, Ecclesiastical History,1:1,2:24, (A.D. 325).
“Lo! In these three successions, as in a mystery and a figure … Under the three pastors,–there were manifold shepherds” Ephraem, Nisbene Hymns, The Bishops of Nisibis (Jacob, Babu, Valgesh), 13,14 (A.D. 350).
“[W]hile before your election you lived to yourself, after it, you live for your flock. And before you had received the grace of the episcopate, no one knew you; but after you became one, the laity expect you to bring them food, namely instruction from the Scriptures … For if all were of the same mind as your present advisers, how would you have become a Christian, since there would be no bishops? Or if our successors are to inherit this state of mind, how will the Churches be able to hold together?” Athanasius, To Dracontius, Epistle 49 (A.D. 355).
“**elieve as we believe, we, who are, by succession from the blessed apostles, bishops; confess as we and they have confessed, the only Son of God, and thus shalt thou obtain forgiveness for thy numerous crimes.” Lucifer of Calaris, On St. Athanasius (A.D. 361).
“[W]e shall not recede from the faith … as once laid it continues even to this say, through the tradition of the fathers, according to the succession from the apostles, even to the discussion had at Nicea against the heresy which had, at that period, sprung up.” Hilary of Poitiers, History Fragment 7 (ante A.D. 367).
“[D]uring the days of that Anicetus, bishop of Rome, who succeeded Pius and his predecessors, For, in Rome, Peter and Paul were the first both apostles and bishops; then came Linus, then Cletus … However the succession of the bishops in Rome was in the following order. Peter and Paul, and Cletus, Clement…” Epiphanius, Panarion, 27:6 (A.D. 377).
“He [St. Athanasius] is led up to the throne of Saint Mark, to succeed him in piety, no less than in office; in the latter indeed at a great distance from him, in the former, which is the genuine right of succession, following him closely. For unity in doctrine deserves unity in office; and a rival teacher sets up a rival throne; the one is a successor in reality, the other but in name. For it is not the intruder, but he whose rights are intruded upon, who is the successor, not the lawbreaker, but the lawfully appointed, not the man of contrary opinions, but the man of the same faith; if this is not what we mean by successor, he succeeds in the same sense as disease to health, darkness to light, storm to calm, and frenzy to sound sense.” Gregory of Nazianzen, Oration 21:8 (A.D. 380).
“For they [Novatians] have not the succession of Peter, who hold not the chair of Peter, which they rend by wicked schism; and this, too, they do, wickedly denying that sins can be forgiven even in the Church, whereas it was said to Peter: ‘I will give unto thee the keys of the kingdom of heaven. and whatsoever thou shalt bind on earth shall be bound also in heaven, and whatsoever thou shall loose on earth shall be loosed also in heaven.’” Ambrose, Concerning Repentance, 7:33 (A.D. 384).
“It has been ordained by the apostles and their successors, that nothing be read in the Catholic Church, except the law, and the prophets, and the Gospels.” Philastrius of Brescia, On Heresies (ante A.D. 387).**