Leviticus 25:53-55

New International Version - UK

⁵³ They are to be treated as workers hired from year to year; you must see to it that those to whom they owe service do not rule over them ruthlessly.

⁵⁴ ‘“Even if someone is not redeemed in any of these ways, they and their children are to be released in the Year of Jubilee, ⁵⁵ for the Israelites belong to me as servants. They are my servants, whom I brought out of Egypt. I am the Lord your God.