Jeremiah 34:8; Jeremiah 34:14

8 The word came to Jeremiah from the LORD after King Zedekiah had made a covenant with all the people in Jerusalem to proclaim freedom for the slaves.

14 ‘Every seventh year each of you must free any fellow Hebrews who have sold themselves to you. After they have served you six years, you must let them go free.’ Your ancestors, however, did not listen to me or pay attention to me.