Cross reference
Deuteronomy 23:25
25 When thou comest into the standing corn of thy neighbor, then thou mayest pluck the ears with thine hand; but thou shalt not move a sickle unto thy neighbor's standing corn.
Mark 2:23
23 And it came to pass, that he went through the corn fields on the sabbath day; and his disciples began, as they went, to pluck the ears of corn.
Matthew 12:1-2
1 At that time Jesus went on the sabbath day through the corn; and his disciples were an hungred, and began to pluck the ears of corn and to eat.
2 But when the Pharisees saw it, they said unto him, Behold, thy disciples do that which is not lawful to do upon the sabbath day.
Luke 6:1-2
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?