"...When, on the occasion of the famine of A.D. 45-46, Barnabas and Saul had completed their ministration in Jerusalem, they took Mark with them on their return to Antioch (Acts 12:25). Not long after, when they started on St. Paul's first Apostolic journey, they had Mark with them as some sort of assistant (hupereten, Acts 13:5);...The context of Acts 13:5, suggests that he helped even in preaching the Word. When Paul and Barnabas resolved to push on from Perga into central Asia Minor, Mark, departed from them.... and returned to Jerusalem (Acts 13:13)... St. Paul, who refused on account of it to take Mark with him on the second Apostolic journey. This refusal led to the separation of Paul and Barnabas, and the latter, taking Mark with him, sailed to Cyprus (Acts 15:37-40). At this point (A.D. 49-50) we lose sight of Mark in Acts, and we meet him no more in the New Testament, till he appears some ten years afterwards as the fellow-worker of St. Paul, and in the company of St. Peter, at Rome (Colossians 4:10)....and he was probably there when St. Paul was martyred.
When we turn to tradition, Papias (Eusebius, Church History 3:39) asserts not later than A.D. 130, on the authority of an "elder", that Mark had been the interpreter (hermeneutes) of Peter, and wrote down accurately, though not in order, the teaching of Peter (GOSPEL OF SAINT MARK). A widespread... tradition represents St. Mark as the founder of the Church of Alexandria...The date of Mark's death is uncertain. As to the manner of his death, the "Acts" of Mark give the saint the glory of martyrdom, and say that he died while being dragged through the streets of Alexandria; so too the Paschal Chronicle.... In Christian literature and art St. Mark is symbolically represented by a lion. The Latin and Greek Churches celebrate his feast on 25 April, but the Greek Church keeps also the feast of John Mark on 27 September."
When we turn to tradition, Papias (Eusebius, Church History 3:39) asserts not later than A.D. 130, on the authority of an "elder", that Mark had been the interpreter (hermeneutes) of Peter, and wrote down accurately, though not in order, the teaching of Peter (GOSPEL OF SAINT MARK). A widespread... tradition represents St. Mark as the founder of the Church of Alexandria...The date of Mark's death is uncertain. As to the manner of his death, the "Acts" of Mark give the saint the glory of martyrdom, and say that he died while being dragged through the streets of Alexandria; so too the Paschal Chronicle.... In Christian literature and art St. Mark is symbolically represented by a lion. The Latin and Greek Churches celebrate his feast on 25 April, but the Greek Church keeps also the feast of John Mark on 27 September."