Mark 2:23
And it came to pass, that he was going on the sabbath day through the grainfields; and his disciples began, as they went, to pluck the ears.
Matthew 12:1-8
At that season Jesus went on the sabbath day through the grainfields; and his disciples were hungry and began to pluck ears and to eat.
Luke 6:1-5
Now it came to pass on a sabbath, that he was going through the grainfields; and his disciples plucked the ears, and did eat, rubbing them in their hands.
Deuteronomy 23:24-25
When thou comest into thy neighbor's vineyard, then thou mayest eat of grapes thy fill at thine own pleasure; but thou shalt not put any in thy vessel.