The conflict with Pharisees over Sabbath continues, as Jesus heals a man's hand on the Sabbath.
They say He is out of His mind, or of Beelzebub (Satan). But Jesus notes that He is casting out demons, so that can't be, because no house works against itself. He is making a point here, that the house of Israel is currently divided between its owner, Himself, and its stewards, the Pharisees.
Jesus chooses 12 apostles "to be with Him" and then to go out, preaching and casting out demons.