When you reap your harvest in your field, and have forgot a sheaf in the field, you shall not go again to get it: it shall be for the foreigner, for the fatherless, and for the widow; that the LORD your God may bless you in all the work of your hands.
You shall remember that you were a servant in the land of Egypt, and the LORD your God brought you out of there by a mighty hand and by an outstretched arm: therefore the LORD your God commanded you to keep the day of Shabbat.