Jeremiah 34:9-11

Complete Jewish Bible

⁹ Everyone who had a male or female slave who was Hebrew was to let him go free; none was to keep as his slave a fellow Jew. ¹⁰ All the leaders and all the people listened who had entered into the covenant, wherein everyone was to free his male and female slaves and not keep them in bondage any longer. They listened, and they let them go. ¹¹ But afterwards, they changed their minds; they made the male and female slaves, whom they had freed, return; and they brought them back into subjection as slaves.