Jeremiah 33:21

18 neither shall the priests the Levites want a man before me to offer burnt offerings, and to burn meal-offerings, and to do sacrifice continually.

19 The word of Yahweh came to Jeremiah, saying,

20 Thus says Yahweh: If you can break my covenant of the day, and my covenant of the night, so that there shall not be day and night in their season;

21 then may also my covenant be broken with David my servant, that he shall not have a son to reign on his throne; and with the Levites the priests, my ministers.

22 As the host of the sky can`t be numbered, neither the sand of the sea measured; so will I multiply the seed of David my servant, and the Levites who minister to me.

23 The word of Yahweh came to Jeremiah, saying,

24 Don`t you consider what this people has spoken, saying, The two families which Yahweh did choose, he has cast them off? thus do they despise my people, that they should be no more a nation before them.