Leviticus 25:40-45

⁴⁰But as a hired man and an inmate shall he be with thee; until the year of Jubilee shall he serve with thee:

⁴¹Then shall he go out from being with thee, he and his children with him, and return to his family and to the inheritance of his fathers.

⁴²For they are My servants, whom I brought out from the land of Mizraim; they shall not be sold as the selling of bondmen.

⁴³Thou shalt not make him serve with rigour, but shalt fear thy God.

⁴⁴Thy bondmen and thy handmaids thou shalt have from the Gentiles who are about thee; from them thou mayest obtain bondmen and handmaids.

⁴⁵And also from the sons of the uncircumcised strangers who sojourn with you, of them and of their children who are with you which are born in the land, you may obtain a possession,