Leviticus 25:39-46

39‘Now 1if a countryman of yours becomes so poor with regard to you that he sells himself to you, you shall not subject him to a slave’s service. 40He shall be with you as a hired worker, 2as if he were a foreign resident; he shall serve with you up to the year of jubilee. 41He shall then leave you, he and his sons with him, and shall go back to his family, so that he may return to the property of his forefathers. 42For they are My servants whom I brought out from the land of Egypt; they are not to be sold in a slave sale. 433You shall not rule over him with 4severity, but are to revere your God. 44As for your male and female slaves whom you may have--you may acquire male and female slaves from the pagan nations that are around you. 45You may also acquire them from the sons of the foreign residents who reside among you, and from their families who are with you, whom they will have produced in your land; they also may become your possession. 46You may also pass them on as an inheritance to your sons after you, to receive as a possession; you can use them as permanent slaves. 5But in respect to your countrymen, the sons of Israel, you shall not rule with 6severity over one another.