Leviticus 25:44-46

Living Bible

⁴⁴ “However, you may purchase slaves from the foreign nations living around you, ⁴⁵ and you may purchase the children of the foreigners living among you, even though they have been born in your land. ⁴⁶ They will be permanent slaves for you to pass on to your children after you; but your brothers, the people of Israel, shall not be treated so.