Acts 15:37

Now Barnabas wanted to take John who was called Mark along also,

Acts 12:12

And [when he] realized [this], he went to the house of Mary, the mother of John (who is also called Mark), where many [people] were gathered together and were praying.

Acts 12:25

So Barnabas and Saul returned to Jerusalem [when they] had completed [their] service, having taken along with [them] John (who is also called Mark).

Acts 13:5

And [when they] came to Salamis, they began to proclaim the word of God in the synagogues of the Jews. And they also had John [as] assistant.

Acts 13:13

Now {Paul and his companions} put out to sea from Paphos [and] came to Perga in Pamphylia, but John departed from them [and] returned to Jerusalem.

Colossians 4:10

Aristarchus, my fellow prisoner, greets you, and Mark, the cousin of Barnabas (about whom you received instructions--if he should come to you, welcome him),

2 Timothy 4:11

Luke alone is with me. Take along Mark [and] bring [him] with you, because he is useful to me for ministry.

Treasury of Scripture Knowledge

Summary

And Barnabas determined to take with them John, whose surname was Mark.

Bible References

John

Acts 12:12
And [when he] realized [this], he went to the house of Mary, the mother of John (who is also called Mark), where many [people] were gathered together and were praying.
Acts 13:5
And [when they] came to Salamis, they began to proclaim the word of God in the synagogues of the Jews. And they also had John [as] assistant.
Colossians 4:10
Aristarchus, my fellow prisoner, greets you, and Mark, the cousin of Barnabas (about whom you received instructions--if he should come to you, welcome him),
2 Timothy 4:11
Luke alone is with me. Take along Mark [and] bring [him] with you, because he is useful to me for ministry.
Philemon 1:24
[and so do] Mark, Aristarchus, Demas, [and] Luke, my fellow workers.