Leviticus 25:39-43

39‘1If a 2countryman 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 man, as 3if he were a sojourner; he shall serve with you until the year of jubilee.

41He shall then go out from you, he and his sons with him, and shall go back to his family, 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.

434You shall not rule over him with severity, but are to revere your God.