Acts 15:37
Barnabas wanted to take along John, who was called Mark,
Acts 12:12
When Peter realized what had happened, he went to the house of Mary, the mother of John who was also called Mark, where a large number of people had gathered and were praying.
Acts 12:25
When Barnabas and Saul had fulfilled their mission, they returned from Jerusalem, bringing with them John who was also called Mark.
Acts 13:5
Arriving in Salamis, they began to preach God's word in the Jewish synagogues. They also had John to help them.
Acts 13:13
Then Paul and his men set sail from Paphos and arrived in Perga in Pamphylia, where John left them and went back to Jerusalem.
Colossians 4:10
Aristarchus, my fellow prisoner, sends his greetings, as does Mark, the cousin of Barnabas. You have received instructions about him. If he comes to you, welcome him.
2 Timothy 4:11
Only Luke is with me. Get Mark and bring him with you, for he is useful in my ministry.