Leviticus 25:44-46

Revised Standard Version

⁴⁴ As for your male and female slaves whom you may have: you may buy male and female slaves from among the nations that are round about you. ⁴⁵ You may also buy from among the strangers who sojourn with you and their families that are with you, who have been born in your land; and they may be your property. ⁴⁶ You may bequeath them to your sons after you, to inherit as a possession for ever; you may make slaves of them, but over your brethren the people of Israel you shall not rule, one over another, with harshness.