Jeremiah 34:7-9

Amplified Bible, Classic Edition

⁷ When the army of the king of Babylon was fighting against Jerusalem and against all the cities of Judah that were left, against Lachish and Azekah, for these were the only fortified cities remaining of the cities of Judah.

⁸ [This is] the word that came to Jeremiah from the Lord after King Zedekiah had made a covenant with all the people who were at Jerusalem to proclaim liberty to them:

⁹ Every man should let his Hebrew slaves, male and female, go free, so that no one should make a slave of a Jew, his brother.