Exodus 23:9-12

“You shall not oppress a stranger, since you yourselves know the feelings of a stranger, for you also were strangers in the land of Egypt. “You shall sow your land for six years and gather in its yield, but on the seventh year you shall let it rest and lie fallow, so that the needy of your people may eat; and whatever they leave the beast of the field may eat. You are to do the same with your vineyard and your olive grove. “Six days you are to do your work, but on the seventh day you shall cease from labor so that your ox and your donkey may rest, and the son of your female slave, as well as your stranger, may refresh themselves.