121 At that time Jesus went through the grainfields on the sabbath; his disciples were hungry, and they began to pluck heads of grain and to eat. 2 When the Pharisees saw it, they said to him, "Look, your disciples are doing what is not lawful to do on the sabbath." 3 He said to them, "Have you not read what David did when he and his companions were hungry? 4 He entered the house of God and ate the bread of the Presence, which it was not lawful for him or his companions to eat, but only for the priests. 5 Or have you not read in the law that on the sabbath the priests in the temple break the sabbath and yet are guiltless? 6 I tell you, something 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."
9 He left that place and entered their synagogue; 10 a man was there with a withered hand, and they asked him, "Is it lawful to cure on the sabbath?" so that they might accuse him. 11 He said to them, "Suppose one of you has only one sheep and it falls into a pit on the sabbath; will you not lay hold of it and lift it out? 12 How much more valuable is a human being than a sheep! So it is lawful to do good on the sabbath." 13 Then he said to the man, "Stretch out your hand." He stretched it out, and it was restored, as sound as the other.
Matthew Henry's Commentary on Matthew 12:1-13
Commentary on Matthew 12:1-8
(Read Matthew 12:1-8)
Being in the corn-fields, the disciples began to pluck the ears of corn: the law of God allowed it, Deuteronomy 5:14. No law must be understood so as to contradict its own end. And as Christ is the Lord of the sabbath, it is fit the day and the work of it should be dedicated to him.
Commentary on Matthew 12:9-13
(Read Matthew 12:9-13)
Christ shows that works of mercy are lawful and proper to be done on the Lord's day. There are more ways of doing well upon sabbath days, than by the duties of worship: attending the sick, relieving the poor, helping those who need speedy relief, teaching the young to care for their souls; these are doing good: and these must be done from love and charity, with humility and self-denial, and shall be accepted, Genesis 4:7. This, like other cures which Christ wrought, had a spiritual meaning. By nature our hands are withered, and we are unable of ourselves to do any thing that is good. Christ only, by the power of his grace, cures us; he heals the withered hand by putting life into the dead soul, works in us both to will and to do: for, with the command, there is a promise of grace given by the word.