20. When you have picked your olives once, do not go back and get those that are left; they are for the foreigners, orphans, and widows.
21. When you have gathered your grapes once, do not go back over the vines a second time; the grapes that are left are for the foreigners, orphans, and widows.
22. Never forget that you were slaves in Egypt; that is why I have given you this command.