Acts 15:37
And Barnabas proposed to take with them John, who was surnamed Mark.
Acts 12:12
And considering with himself, he came to the house of Mary the mother of John, who was sirnamed Mark, where many were gathered together and praying.
Acts 12:25
And Barnabas and Saul returned from Jerusalem, when they had fulfilled their charge, taking along with them John who was sirnamed Mark.
Acts 13:5
And when they arrived at Salamis, they preached the word of God in the synagogues of the Jews: and they had also John for their assistant.
Acts 13:13
Now Paul and those that were with him loosing from Paphos, came to Perga in Pamphylia: but John departed from them and returned to Jerusalem.
Colossians 4:10
Aristarchus my fellow-prisoner saluteth you, and Marcus nephew to Barnabas, concerning whom ye have received orders; (if he come to you, receive him;) and Jesus who is called Justus:
2 Timothy 4:11
Take Mark, and bring him with thee: for he is useful to me in the ministry.