Saint Mark [Lat. Marcus], Christian apostle, traditional author of the 2d Gospel (see Mark, Gospel according to). His full name was John Mark. His mother, named Mary, had a house in Jerusalem, which the Christians used as a meeting place. Mark accompanied St. Paul and St. Barnabas, who was his cousin or uncle, on their mission to Cyprus, but he left them at Perga and returned to Jerusalem. Paul refused to take Mark on his second trip, thus creating a breach with Barnabas. Tradition identifies Mark with the young man who "fled from them naked" at Gethsemane. Tradition also makes him an associate of St. Peter, who is thought to have furnished many of the evangelist's facts. The Alexandrian church claims Mark as its founder—the liturgy of that church is called the Liturgy of St. Mark. St. Mark is the patron of Venice and of its famous cathedral, where his relics are shown. His symbol as an evangelist is a lion. Feast: Apr. 25.

Mark, St. One of the four Evangelists. He is traditionally identified with the cousin of Barnabas who accompanied him and Paul (Colossians 4. 10; Acts 12–15). According to Papias he was the ‘interpreter’ of Peter in Rome (cf. 1 Peter 5. 13). By the 4th cent. he was credited with founding the church of Alexandria. His relics were removed from there to Venice in the 9th cent. Feast day, 25 Apr.

The Gospel according to Mark is the second book in the New Testament.

Mark, Saint (active 1st century ad) Apostle and possibly one of the four evangelists of the New Testament. He is identified with John Mark (Acts 12:12. 15:37), the cousin of the apostle Saint Barnabas. He accompanied both Barnabas and Saint Paul on several missionary journeys until a disagreement with Paul caused him to detach himself. Christian tradition says that he went on to become secretary to Saint Peter and to write the first gospel. His feast day is April 25.