Mark 3:13-16
Appointing the Twelve Apostles
3:13 Now Jesus went up the mountain and called for those he wanted, and they came to him.
3:14 He appointed twelve (whom he named apostles), so that they would be with him and he could send them to preach
3:15 and to have authority to cast out demons.
3:16 He appointed twelve: To Simon he gave the name Peter;