From his entourage Jesus chooses twelve men to follow him as formal apprentices or apostles (3:13–19). The number twelve, not a common number in Judaism, suggests that the twelve apostles reconstitute the twelve tribes of Israel. The Greek of 3:13 emphasizes the solemnity and symbolism of the event: Jesus issues the call from a mountain (mountains were sites of divine revelation in Israel) and sum…
Baker Publishing Group, The Baker Illustrated Bible Commentary, by Gary M. Burge