Jeremiah 33:15-21

MLV(i) 15 In those days and at that time, I will cause a Branch of righteousness to grow up to David and he will execute justice and righteousness in the land. 16 In those days Judah will be saved and Jerusalem will dwell safely. And this is the name whereby she will be called: Jehovah our righteousness.
17 For Jehovah says thus: David will never want a man to sit upon the throne of the house of Israel, 18 neither will the priests the Levites want a man before me to offer burnt offerings and to burn meal offerings and to do sacrifice continually.
19 And the word of Jehovah came to Jeremiah, saying, 20 Jehovah says thus: If you* can break my covenant of the day and my covenant of the night, so that there will not be day and night in their season, 21 then may also my covenant be broken with David my servant, that he will not have a son to reign upon his throne and with the Levites the priests, my ministers.