Leviticus 25:40-42

Amplified Bible

⁴⁰ but he is to be with you as a hired man, as if he were a temporary resident; he shall serve with you until the Year of Jubilee, ⁴¹ and then he shall leave you, he and his children with him, and shall go back to his own family and return to the property of his fathers. ⁴² For the Israelites are My servants whom I brought out of the land of Egypt; they shall not be sold in a slave sale.^(A)