Deuteronomy 24:19-21

When you are gathering your harvest in the field and leave behind a bundle of grain, don’t go back and get it. Leave it there for foreigners, orphans, and widows so that the LORD your God can bless everything you do. When you beat your olive trees to knock the olives off, don’t beat the trees a second time. Leave what is left for foreigners, orphans, and widows. When you harvest the grapes in your vineyard, don’t pick the vines a second time. Leave what is left for foreigners, orphans, and widows.