Deuteronomy 23:25

23:25 When you go into the ripe grain fields of your neighbor you may pluck off the kernels with your hand, but you must not use a sickle on your neighbor’s ripe grain.

Deuteronomy 25:18

25:18 how they met you along the way and cut off all your stragglers in the rear of the march when you were exhausted and tired; they were unafraid of God.