Luke 6:1-3

1 And it came to pass on the second sabbath after the first, that he went through the corn fields; and his disciples plucked the ears of corn, and did eat, rubbing them in their hands.
2 And certain of the Pharisees said unto them, Why do ye that which is not lawful to do on the sabbath days?
3 And Jesus answering them said, Have ye not read so much as this, what David did, when himself was an hungred, and they which were with him;