Jesus returns to Nazareth and teaches in the synagogue. Many are amazed but take offense: he is the carpenter, the son of Mary, and they know his brothers. Jesus says a prophet is not without honor except in his hometown, and he marvels at their unbelief; he can do only a few miracles there. He then goes around the villages teaching and sends out the twelve two by two with authority over unclean spirits, with instructions to travel light and to shake the dust off their feet where they are not welcomed. They preach, cast out demons and heal the sick.
King Herod hears about Jesus and thinks he is John raised from the dead. Mark then tells how Herod had imprisoned John for denouncing his marriage to Herodias, his brother's wife. At Herod's birthday banquet, Herodias's daughter dances and pleases the king, who promises her whatever she asks. Prompted by her mother, she asks for John's head on a platter. Herod, grieved but bound by his oath and his guests, orders John beheaded.
The apostles return and report all they have done. Jesus takes them to a desolate place to rest, but the crowd gets there first, and he has compassion on them because they are like sheep without a shepherd, and he teaches them at length. Toward evening, with five loaves and two fish, he has the people sit down in groups, blesses and breaks the bread, and the disciples distribute it: about five thousand men eat, and twelve baskets of leftovers are gathered. He sends the disciples ahead in the boat and goes up to pray. In the early morning he sees them straining at the oars against the wind and comes toward them walking on the sea. They think he is a ghost and cry out, but he tells them to take heart. He gets into the boat, the wind stops and they are astonished, for they had not understood about the loaves.