Deuteronomy 15:1

Release for Debt Slaves

15:1 At the end of every seven years you must declare a cancellation of debts.

Exodus 21:2-6

Hebrew Servants

21:2 “If you buy a Hebrew servant, he is to serve you for six years, but in the seventh year he will go out free without paying anything. 21:3 If he came in by himself he will go out by himself; if he had a wife when he came in, then his wife will go out with him. 21:4 If his master gave him a wife, and she bore sons or daughters, the wife and the children will belong to her master, and he will go out by himself. 21:5 But if the servant should declare, ‘I love my master, my wife, and my children; I will not go out free,’ 21:6 then his master must bring him to the judges, and he will bring him to the door or the doorposts, and his master will pierce his ear with an awl, and he shall serve him forever.

Leviticus 25:39-41

25:39 “‘If your brother becomes impoverished with regard to you so that he sells himself to you, you must not subject him to slave service. 25:40 He must be with you as a hired worker, as a resident foreigner; he must serve with you until the year of jubilee, 25:41 but then he may go free, he and his children with him, and may return to his family and to the property of his ancestors.

Jeremiah 34:14

34:14 “Every seven years each of you must free any fellow Hebrews who have sold themselves to you. After they have served you for six years, you shall set them free.” But your ancestors did not obey me or pay any attention to me.

John 8:35-36

8:35 The slave does not remain in the family forever, but the son remains forever. 8:36 So if the son sets you free, you will be really free.