Many of the Church Fathers are taken out of context to support Papal Supremacy, when the Church Fathers did not support Papal Supremacy at all. Let me give you an example from Saint Jerome, as quoted by a Catholic Site (catholic.com/tracts/peters-primacy):
> "‘But,’ you [Jovinian] will say, ‘it was on Peter that the Church was founded’ [Matt. 16:18]. Well . . . one among the twelve is chosen to be their head in order to remove any occasion for division" (Against Jovinian 1:26 [A.D. 393]).'
Now take a look at the quote in context: first of all, Saint Jerome is responding to Jovian, who says chastity is of no importance, and Jovian argued that if chastity were important, then Saint John, who was a virgin, would have been made the rock, not Peter, who was not a virgin. Saint Jerome is not presenting his own opinion about Peter being the rock, he is actually responding to Jovian voicing that opinion (indeed, if we look as Saint Jerome's commentary on Matthew, he says, on Matthew 16:18, that Christ is referring to HIMSELF when he says "on this rock", see Ephesians 2:20).
Now let's remove the ellipsis and see the full quote:
> "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. But why was not John chosen, who was a virgin? Deference was paid to age, because Peter was the elder: one who was a youth, I may say almost a boy, could not be set over men of advanced age; and a good master who was bound to remove every occasion of strife among his disciples, and who had said to them, Peace I leave with you, my peace I give unto you, and, He that is the greater among you, let him be the least of all, would not be thought to afford cause of envy against the youth whom he had loved. We may be sure that John was then a boy because ecclesiastical history most clearly proves that he lived to the reign of Trajan, that is, he fell asleep in the sixty-eighth year after our Lord's passion, as I have briefly noted in my treatise on Illustrious Men. Peter is an Apostle, and John is an Apostle— the one a married man, the other a virgin; but Peter is an Apostle only, John is both an Apostle and an Evangelist, and a prophet." (newadvent.org/fathers/30091.htm)
Casts the quote in quite a different light, doesn't it?