Acts 12:25

12:25 So Barnabas and Saul returned to Jerusalem when they had completed their mission, bringing along with them John Mark.

Acts 15:39

15:39 They had a sharp disagreement, so that they parted company. Barnabas took along Mark and sailed away to Cyprus,

Acts 12:12

12:12 When Peter realized this, he went to the house of Mary, the mother of John Mark, where many people had gathered together and were praying.