“In a sermon to his flock, Augustine informed them that the pope had ratified the condemnations of the Pelagian heresy pronounced at the councils of Milevi and Carthage. He said “The two councils sent their decrees to the Apostolic See and the decrees quickly came back. The cause is finished; would that the error were as quickly finished (Sermon 131:10).” This has developed over the centuries into the commonly known formula.” ~Catholic Answers
This quote from St. Agustine is a popular apologetics tool. However, now that I read this exact translation, it puzzles me. “The Apostolic See” can refer to any descendant of the original 12, can’t it? Not just a successor of Peter, correct? How do we know he’s referring to the pope, specifically? Does he specify elsewhere in the sermon? Do we know for a fact there is no other bishop he could have been referring to? Were there no other bishops at that time? Thank you.