Acts 12:25
and after discharging their mission, Barnabas and Saul returned from Jerusalem, bringing with them John, surnamed Mark.
Acts 12:12
So, after he had thought things over, he went to the house of Mary, the mother of John, surnamed Mark, where a large number of people were assembled, praying.
Acts 4:36
In this way Joseph, whom the apostles called Barnabas ("Son of Encouragement" is what it means), who was a native Cyprus,
Acts 11:29-30
So the disciples decided to send relief, every man according to his means, to the brothers in Judea.
Acts 13:1-52
Now there were in the church in Antioch prophets and teachers; Barnabas and Symeon, surnamed "the Black," Lucius of Cyrene, Manaen, the foster-brother of Herod the Tetrarch, and Saul.
Acts 15:37
Now Barnabas wanted to take with them John, who was called Mark.
1 Peter 5:13
Your sister church in Babylon, elect with you, sends you salutations, and so does Marcus, my son.