Leviticus 25:44-46

⁴⁴A servant and (a) handmaid be to you of the nations that be in your compass, and of the comelings the which be pilgrims with you, (For your slaves and your slave-girls, buy thou them from the nations that be all around you, and from the newcomers who be foreigners, or strangers, among you,)

⁴⁵either they that be born of comelings in your land; ye shall have these (as) servants, and by right of heritage ye shall leave them to your after-comers, and ye shall wield them without end; (or they who be born to newcomers in your land; ye shall have them as your slaves, and by right of inheritance ye shall leave them to your after-comers, and so ye shall own them forever;)

⁴⁶soothly oppress ye not by power your brethren, the sons of Israel. (but with your power, do not ye oppress your own brothers, the Israelites.)