Jeremiah 34:5-9

You will die in peace; and as spices were burned for your fathers, the former kings who were before you, so they will burn spices for you; and they will mourn for you, crying, “Oh, my lord!” ’ For I have spoken the word,” declares the Lord.

Then Jeremiah the prophet spoke all these words to Zedekiah king of Judah in Jerusalem

when the army of the king of Babylon was fighting against Jerusalem and all the remaining cities of Judah, that is, Lachish and Azekah, for they alone remained as fortified cities among the cities of Judah.

The word that came to Jeremiah from the Lord after King Zedekiah had made a covenant with all the people who were in Jerusalem, to proclaim release to them:

that each person was to set his male servant free and each his female servant, a Hebrew man or a Hebrew woman, so that no one would keep them, his Jewish brother or sister, in bondage.