Leviticus 25:46-48

New King James Version

⁴⁶ And ^(A)you may take them as an inheritance for your children after you, to inherit them as a possession; they shall be your permanent slaves. But regarding your brethren, the children of Israel, you shall not rule over one another with rigor.

⁴⁷ ‘Now if a sojourner or stranger close to you becomes rich, and one of your brethren who dwells by him becomes poor, and sells himself to the stranger or sojourner close to you, or to a member of the stranger’s family, ⁴⁸ after he is sold he may be redeemed again. One of his brothers may redeem him;