Deuteronomy 24:21 in the King James Version
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.
Context
20 When you beat your olive tree, you shall not go over the boughs again. It shall be for the foreigner, for the fatherless, and for the widow.
21 When you harvest your vineyard, you shall not glean it after yourselves. It shall be for the foreigner, for the fatherless, and for the widow.
22 You shall remember that you were a slave in the land of Egypt. Therefore I command you to do this thing.