“There are many other things which rightly keep me in the bosom of the Catholic Church. The consent of the people and nations keeps me, her authority keeps me, inaugurated by miracles, nourished in hope, enlarged by love, and established by age. The succession of priests keeps me, from the very seat of the apostle Peter (to whom the Lord after his resurrection gave charge to feed his sheep) down to the present episcopate [of Pope Siricius]“(Against the Letter of Mani Called “The Foundation” 5 [A.D. 397]).
“[On this matter of the Pelagians] two councils have already been sent to the Apostolic See [the bishop of Rome], and from there rescripts too have come. The matter is at an end; would that the error too might be at an end!” (Sermons 131:10 [A.D. 411]).