Jeremiah 34:6-8

Amplified Bible

⁶ Then Jeremiah the prophet spoke all these words to Zedekiah king of Judah in Jerusalem ⁷ when the army of the king of Babylon was fighting against Jerusalem and against all the remaining cities of Judah, against Lachish and Azekah, for these were the [only] fortified cities among the cities of Judah.

⁸ The word came to Jeremiah from the Lord after King Zedekiah had made a covenant (solemn pledge) with all the [Hebrew] people who were [slaves] in Jerusalem to proclaim liberty to them: