Jeremiah 33:21

33:21 could my covenant with my servant David and my covenant with the Levites ever be broken. So David will by all means always have a descendant to occupy his throne as king and the Levites will by all means always have priests who will minister before me.

Jeremiah 34:18

34:18 I will punish those people who have violated their covenant with me. I will make them like the calf they cut in two and passed between its pieces. I will do so because they did not keep the terms of the covenant they made in my presence.