Leviticus 25:47-55

⁴⁷‘Now if the means of a stranger or of a foreign resident with you becomes sufficient, and a countryman of yours becomes poor in relation to him and sells himself to a stranger who is residing with you, or to the descendants of a stranger’s family, ⁴⁸then he shall have redemption right after he has been sold. One of his brothers may redeem him, ⁴⁹or his uncle, or his uncle’s son may redeem him, or one of his blood relatives from his family may redeem him; or if he prospers, he may redeem himself. ⁵⁰He then, with his purchaser, shall calculate from the year when he sold himself to him up to the year of jubilee; and the price of his sale shall correspond to the number of years calculated. It is like the days of a hired worker that he will be with him. ⁵¹If there are still many years remaining, he shall refund part of his purchase price in proportion to them for his own redemption; ⁵²but if few years remain until the year of jubilee, he shall so calculate with him. In proportion to his years he is to refund the amount for his redemption. ⁵³He shall be with him like a worker hired year by year; he shall not rule over him with severity in your sight. ⁵⁴Even if he is not redeemed by these means, he shall still leave in the year of jubilee, he and his sons with him. ⁵⁵For the sons of Israel are My servants; they are My servants whom I brought out from the land of Egypt. I am the Lord your God.