Acts 12:25
Barnabas and Saul returned [to Antioch] from Jerusalem after they had fulfilled their mission [i.e., of taking the contribution for the famine-stricken people of Judea. See 11:27-30]. They took John Mark [back to Antioch with them].
Acts 12:12
After thinking about the matter [for awhile], he decided to go to the house of Mary, mother of John Mark, where a large gathering [of Christians] was praying.
Acts 4:36
And Joseph, who was called by the apostles, Barnabas (which means "son of encouragement"), was a descendant of the Jewish tribe of Levi, whose family originated from [the island of] Cyprus.
Acts 11:29-30
[In response to this prediction], the disciples decided to send as much relief as they could to help the brothers living in Judea.
Acts 13:1-52
Now in the church at Antioch there were [these] prophets and teachers: Barnabas, Symeon, called Niger, Lucius of Cyrene, Manaen, the foster-brother of Herod the Tetrarch [i.e., governor of Galilee], and Saul.
Acts 15:37
Barnabas [agreed, and] wanted to take John Mark [his cousin, See Col. 4:10] with them.
1 Peter 5:13
Your sister [church] here in Babylon, [also] chosen [by God], as you have been, sends her greetings along with my [spiritual] son Mark.