Deuteronomy 24:19

19“24:19 The divine laws for harvesting give a clear picture of how Israel was to provide for the feeding of the poor and destitute, in addition to charitable contributions which were required or expected of anyone who was able. The owner of a field or farm was entitled to everything he could harvest with a reasonable effort. God reserved any leftovers for the poor, who for their part had to put in their own efforts to glean the fields. These laws are examples of charity in cooperation with fairness and the work ethic.When you reap your harvest in your field and have forgotten a sheaf [of grain] in the field, you shall not go back to get it; it shall be for the stranger, for the orphan, and for the widow, so that the Lord your God may bless you in all the work of your hands.