Deuteronomy 15:1, 12-15, 18

“At the end of every seven years you shall grant a release (remission, pardon) from debt.

“If your fellow Israelite, a Hebrew man or woman, is sold to you, and serves you for six years, then in the seventh year you shall set him free [from your service]. When you set him free, you shall not let him go away empty-handed. You shall give him generous provisions from your flock, from your threshing floor and from your wine press; you shall give to him as the LORD your God has blessed you. And you shall remember and thoughtfully consider that you were [once] a slave in the land of Egypt, and the LORD your God redeemed you; therefore, I am commanding you these things today.

“It shall not seem hard to you when you set him free, for he has served you six years with double the service of a hired man; so the LORD your God will bless you in everything you do.