Acts 4:36 (KJV)
36 And Joses, who by the apostles was surnamed Barnabas, (which is, being interpreted, The son of consolation,) a Levite, and of the country of Cyprus,
Acts 9:26-31 (NKJV)
26 And when Saul had come to Jerusalem, he tried to join the disciples; but they were all afraid of him, and did not believe that he was a disciple.
27 But Barnabas took him and brought him to the apostles. And he declared to them how he had seen the Lord on the road, and that He had spoken to him, and how he had preached boldly at Damascus in the name of Jesus.
28 So he was with them at Jerusalem, coming in and going out.
29 And he spoke boldly in the name of the Lord Jesus and disputed against the Hellenists, but they attempted to kill him.
30 When the brethren found out, they brought him down to Caesarea and sent him out to Tarsus.
31 Then the churches throughout all Judea, Galilee, and Samaria had peace and were edified. And walking in the fear of the Lord and in the comfort of the Holy Spirit, they were multiplied.
Acts 11:21-26 (NKJV)
21 And the hand of the Lord was with them, and a great number believed and turned to the Lord.
22 Then news of these things came to the ears of the church in Jerusalem, and they sent out Barnabas to go as far as Antioch.
23 When he came and had seen the grace of God, he was glad, and encouraged them all that with purpose of heart they should continue with the Lord.
24 For he was a good man, full of the Holy Spirit and of faith. And a great many people were added to the Lord.
25 Then Barnabas departed for Tarsus to seek Saul.
26 And when he had found him, he brought him to Antioch. So it was that for a whole year they assembled with the church and taught a great many people. And the disciples were first called Christians in Antioch.
2 Timothy 4:11 (KJV)
11 Only Luke is with me. Take Mark, and bring him with thee: for he is profitable to me for the ministry.