Acts 12:25

Barnabas and Saul came back from Jerusalem when they had completed their mission, bringing with them John, who was also called Mark.

Acts 12:12

When he realized what had happened, he went to the house of Mary the mother of John, who was also called Mark, where many [believers] were gathered together and were praying continually [and had been praying all night].

Acts 4:36

Now Joseph, a Levite and native of Cyprus, who was surnamed Barnabas by the apostles (which translated means Son of Encouragement),

Acts 11:29-30

So the disciples decided to send a contribution, each according to his individual ability, to the believers who lived in Judea.

Acts 13:1-52

Now in the church at Antioch there were prophets [who spoke a new message of God to the people] and teachers: Barnabas, Simeon who was called Niger, Lucius of Cyrene, Manaen who had been brought up with Herod [Antipas] the tetrarch, and Saul.

Acts 15:37

Now Barnabas wanted to take [his cousin] John, who was called Mark, along with them.

1 Peter 5:13

She [the church] who is in Babylon, chosen together with you, sends you greetings, and so does my son [in the faith], Mark.

Treasury of Scripture Knowledge

Summary

And Barnabas and Saul returned from Jerusalem, when they had fulfilled their ministry, and took with them John, whose surname was Mark.

Bible References

Took

Acts 13:5
When Barnabas and Saul arrived at Salamis, they began to preach the word of God [proclaiming the message of eternal salvation through faith in Christ] in the synagogues of the Jews; and they also had John [Mark] as their assistant.
Acts 15:37
Now Barnabas wanted to take [his cousin] John, who was called Mark, along with them.