Mark 3:13-19 - The Selection Of The Twelve Apostles
13 And he went up the hillside and summoned to him those whom he wanted, and they went to him. 14 He appointed twelve of them, whom he called apostles, to be with him and to be sent out to preach, 15 with power to drive out the demons. These were the twelve he appointed:
16 Peter, which was the name he gave to Simon, 17 James the son of Zebedee, and John, James's brother (he named them Boanerges, that is, Sons of Thunder), 18 Andrew, Philip, Bartholomew, Matthew, Thomas, James the son of Alpheus, Thaddeus, Simon the Zealot, 19 and Judas Iscariot, who betrayed him. Then he went home.
12 It was in those days that he went up on the mountain to pray, and passed the whole night in prayer to God. 13 When day came, he called his disciples to him, and chose twelve of them whom he named apostles:
14 Simon, whom he named Peter, his brother Andrew, James, John, Philip, Bartholomew, 15 Matthew, Thomas, James, the son of Alpheus, Simon, who was called the Zealot, 16 Judas, the son of James, and Judas Iscariot, who turned out a traitor.