13 He climbed a mountain and invited those he wanted with him. They climbed together. 14 He settled on twelve, and designated them apostles. The plan was that they would be with him, and he would send them out to proclaim the Word 15 and give them authority to banish demons. 16 These are the Twelve: Simon (Jesus later named him Peter, meaning "Rock"), 17 James, son of Zebedee, John, brother of James (Jesus nicknamed the Zebedee brothers Boanerges, meaning "Sons of Thunder"), 18 Andrew, Philip, Bartholomew, Matthew, Thomas, James, son of Alphaeus, Thaddaeus, Simon the Canaanite, 19 Judas Iscariot (who betrayed him).
20 Jesus came home and, as usual, a crowd gathered - so many making demands on him that there wasn't even time to eat. 21 His friends heard what was going on and went to rescue him, by force if necessary. They suspected he was getting carried away with himself.
Matthew Henry's Commentary on Mark 3:13-21
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.