Most of what we know about Mark comes directly from the New Testament. He is usually identified with the Mark of Acts 12:12. When Saint Peter escaped from prison, he went to the home of Mark’s mother.

Paul and Barnabas took him along on the first missionary journey, but for some reason Mark returned alone to Jerusalem. It is evident, from Paul’s refusal to let Mark accompany him on the second journey despite Barnabas’s insistence, that Mark had displeased Paul. Because Paul later asks Mark to visit him in prison, we may assume the trouble did not last long.

The oldest and the shortest of the four Gospels, the Gospel of Mark emphasizes Jesus’s rejection by humanity while being God’s triumphant envoy. Probably written for gentile converts in Rome—after the death of Peter and Paul sometime between A.D. 60 and 70—Mark’s Gospel is the gradual manifestation of a “scandal”: a crucified Messiah.