
St. John Chrysostom
Recently, I had someone reference an an article by well known Protestant William Webster which seeks to disprove the early acceptance of the Papal-theory as codified especially at the Vatican Council of 1870. I wanted to make sure a certain point was understood before the merits of that article are weighed, though this is not meant to engage with the whole of the article. At points, Webster is keen to find where he thinks the Patristic authors disassociated the “rock” (Matt 16:18) from “Peter”, but even more important is that even if this was associated, there was no continuing succession of Peter as the rock as some divine institution for the well-being of the Church. This later piece will not be addressed here, since I have a much finer point intended. But if readers are interested, I recommend my articles on St. Augustine, the Greek fathers, and some Patristic citations.
“Therefore whoever succeeds to the chair of Peter obtains by the institution of Christ

Pope Pius IX
himself, the primacy of Peter over the whole Church. So what the truth has ordained stands firm, and blessed Peter perseveres in the rock-like strength he was granted, and does not abandon that guidance of the Church which he once received ” (Vatican, 1870)

So it turns out that just like the Catholic Church has always believed, Chrysostom teaches the rock is the faith of Peter but it is a “rock-like” strength given to him and has an intricate association with Peter such that this faith is channeled into the ministry of Peter, such that it lifts him up to be a strength unto the nations, much like, albeit in a greater way, the ministry of holy Jeremiah.
Now, there is nothing in St. John Chrysostom himself that we have in the survived corpus which speaks of a specific continuation of the rock in the successors of St. Peter. But if you check the three links in the first paragraph, one could hardly argue that it was not held by both East and West in the early centuries of the holy and undivided Church of the first millennium.