Illustration: Pietro Perugino, “Christ Handing the Keys to St. Peter”, c. 1481
“The Lord made St. Peter the visible foundation of his Church. He entrusted the keys of the Church to him. The bishop of the Church of Rome, successor to St. Peter, is head of the college of bishops, the Vicar of Christ and Pastor of the universal Church on earth.” (CCC 936)
By Dave Armstrong, EWTN, 1/8/18