Jerome (347-420): What is Said of Peter is Said of All Apostles Alike

But you say, the Church was founded upon Peter: although elsewhere the same is attributed to all the Apostles, and they all receive the keys of the kingdom of heaven, and the strength of the Church depends upon them all alike, yet one among the twelve is chosen so that when a head has been appointed, there may be no occasion for schism. NPNF2: Vol. VI, Against Jovinianus, Book 1, §26.