13 And He went up on the mountain and called to Him those He Himself wanted. And they came to Him. 14 Then He appointed twelve, that they might be with Him and that He might send them out to preach, 15 and to have power to heal sicknesses and to cast out demons: 16 Simon, to whom He gave the name Peter; 17 James the son of Zebedee and John the brother of James, to whom He gave the name Boanerges, that is, "Sons of Thunder"; 18 Andrew, Philip, Bartholomew, Matthew, Thomas, James the son of Alphaeus, Thaddaeus, Simon the Cananite; 19 and Judas Iscariot, who also betrayed Him. And they went into a house.
Matthew Henry's Commentary on Mark 3:13-19
Commentary on Mark 3:13-21
(Read Mark 3:13-21)
Christ calls whom he will; for his grace is his own. He had called the apostles to separate themselves from the crowd, and they came unto him. He now gave them power to heal sicknesses, and to cast out devils. May the Lord send forth more and more of those who have been with him, and have learned of him to preach his gospel, to be instruments in his blessed work. Those whose hearts are enlarged in the work of God, can easily bear with what is inconvenient to themselves, and will rather lose a meal than an opportunity of doing good. Those who go on with zeal in the work of God, must expect hinderances, both from the hatred of enemies, and mistaken affections of friends, and need to guard against both.