Leviticus 25:40-45

⁴⁰Treat him like you treat workers that you hire or like someone who is living on your land temporarily. But he must work for you only until the Year of Celebration.

⁴¹During that year, you must free him, and he will go back to his family and to the property that his ancestors owned.

⁴²It is as though you Israelis are my slaves/servants, whom I freed from being slaves in Egypt. So none of you should be sold to become slaves.

⁴³And do not treat the Israelis whom you buy cruelly; instead, revere me, your God.

⁴⁴If you want to have slaves, you are permitted to buy them from nearby countries.

⁴⁵You are also permitted to buy some of the foreigners who are living among you, and members of their clans that were born in your country. Then you will own them.