Deuteronomy 24
19 Ref When thou reapest thy harvest in thy field, and hast forgot a sheaf in the field, thou shalt not go again to fetch it: it shall be for the sojourner, for the fatherless, and for the widow; that Jehovah thy God may bless thee in all the work of thy hands.
20 Ref When thou beatest thine olive-tree, thou shalt not go over the boughs again: it shall be for the sojourner, for the fatherless, and for the widow.
21 Ref When thou gatherest `the grapes of' thy vineyard, thou shalt not glean it after thee: it shall be for the sojourner, for the fatherless, and for the widow.