Deuteronomy 24:19-21

¹⁹"When you reap your harvest in your field, and have forgotten a sheaf in the field, you shall not go back to get it; it shall be for the sojourner, the fatherless, and the widow; that the LORD your God may bless you in all the work of your hands. ²⁰When you beat your olive trees, you shall not go over the boughs again; it shall be for the sojourner, the fatherless, and the widow. ²¹When you gather the grapes of your vineyard, you shall not glean it afterward; it shall be for the sojourner, the fatherless, and the widow.