When thou comest into the standing corn of thy neighbour, then thou mayest pluck the ears with thine hand; but thou shalt not move a sickle unto thy neighbour's standing corn. Thou mayest pluck the ears with thine hand - It was on the permission granted by this law that the disciples plucked the ears of corn, as related Matthew 12:1. This was both a considerate and humane law, and is no dishonor to the Jewish code.
Commentary on the Bible, by Adam Clarke [1831].