Leviticus 25:46-49

⁴⁶You may make them an inheritance for your children after you, to hold for a possession. Of them you may take your slaves forever, but over your brothers the children of Israel you shall not rule, one over another, with harshness.

⁴⁷“‘If an alien or temporary resident with you becomes rich, and your brother beside him has grown poor, and sells himself to the stranger or foreigner living among you, or to a member of the stranger’s family,

⁴⁸after he is sold he may be redeemed. One of his brothers may redeem him;

⁴⁹or his uncle, or his uncle’s son, may redeem him, or any who is a close relative to him of his family may redeem him; or if he has grown rich, he may redeem himself.