The Disciples Pluck Grain on the Sabbath
12 1 At that time, Jesus went on the Sabbath day through the grain fields. His disciples were hungry and began to pluck heads of grain and to eat. 2 But the Pharisees, when they saw it, said to him, “Behold, your disciples do what is not lawful to do on the Sabbath.” 3 But he said to them, “Haven’t you read what David did, when he was hungry, and those who were with him; 4 how he entered into the house of God, and ate the show bread, which was not lawful for him to eat, neither for those who were with him, but only for the priests?  5 Or have you not read in the law, that on the Sabbath day, the priests in the temple profane the Sabbath, and are guiltless? 6 But I tell you that one greater than the temple is here. 7 But if you had known what this means, ‘I desire mercy, and not sacrifice,’  you would not have condemned the guiltless. 8 For the Son of Man is Lord of the Sabbath.”
The Man with a Withered Hand
9 He departed there, and went into their synagogue. 10 And behold there was a man with a withered hand. They asked him, “Is it lawful to heal on the Sabbath day?” that they might accuse him. 11 He said to them, “What man is there among you, who has one sheep, and if this one falls into a pit on the Sabbath day, won’t he grab on to it, and lift it out? 12 Of how much more value then is a man than a sheep! Therefore it is lawful to do good on the Sabbath day.” 13 Then he told the man, “Stretch out your hand.” He stretched it out; and it was restored whole, just like the other.
14 But the Pharisees went out, and conspired against him, how they might destroy him.
The Chosen Servant
15 Jesus, perceiving that, withdrew from there. Great multitudes followed him; and he healed them all, 16 and commanded them that they should not make him known: 17 that it might be fulfilled which was spoken through Isaiah the prophet, saying, 18 “Behold, my servant whom I have chosen;
my beloved in whom my soul is well pleased:
I will put my Spirit on him.
He will proclaim justice to the nations. 19 He will not strive, nor shout;
neither will anyone hear his voice in the streets. 20 He won’t break a bruised reed.
He won’t quench a smoking flax,
until he leads justice to victory. 21 In his name, the nations will hope.” 
A Divided House Cannot Stand
22 Then one possessed by a demon, blind and mute, was brought to him and he healed him, so that the blind and mute man both spoke and saw. 23 All the multitudes were amazed, and said, “Can this be the son of David?”
12:4 1 Samuel 21:3-6
12:7 Hosea 6:6
12:21 Isaiah 42:1-4