Deuteronomy 24:20-22

When thou beatest thine olive tree, thou shalt not go over the boughs again: it shall be for the stranger, for the fatherless, and for the widow. {go...: Heb. bough it after thee} When thou gatherest the grapes of thy vineyard, thou shalt not glean {it} afterward: it shall be for the stranger, for the fatherless, and for the widow. {afterward: Heb. after thee} And thou shalt remember that thou wast a bondman in the land of Egypt: therefore I command thee to do this thing.