61 Now it happened on the second Sabbath after the first, that he was going through the grain fields. His disciples plucked the heads of grain, and ate, rubbing them in their hands. 2 But some of the Pharisees said to them, “Why do you do that which is not lawful to do on the Sabbath day?” 3 Jesus, answering them, said, “Haven’t you read what David did when he was hungry, he, and those who were with him;
Matthew Henry's Commentary on Luke 6:1-3
Commentary on Luke 6:1-5
(Read Luke 6:1-5)
Christ justifies his disciples in a work of necessity for themselves on the sabbath day, and that was plucking the ears of corn when they were hungry. But we must take heed that we mistake not this liberty for leave to commit sin. Christ will have us to know and remember that it is his day, therefore to be spent in his service, and to his honour.