Bede points to Peter’s exaltation (historical and, it seems ongoing) over the other apostles as a sign: that those who would enter the Church and be saved must remain in the faith of Peter and in the fellowship of the Church.
“That’s no way to talk to the Pope.” This gratuitous and immature comment was my lame attempt at humor. The occasion was the reading of the notorious incident in Syrian Antioch, narrated by St. Paul in Galatians 2:11-14, Paul upbraiding Cephas.
Calvary is really about being a Christian, which means being willing to follow Jesus into the valley of the shadow of death, confident even in the midst of fear and pain that “thou art with me” (Ps 23:4).