Jeremiah 33:18-22

and the Levitical priests shall never lack a man before Me to offer burnt offerings, to burn grain offerings and to prepare sacrifices continually.’ ” The word of the LORD came to Jeremiah, saying, “Thus says the LORD, ‘If you can break My covenant for the day and My covenant for the night, so that day and night will not be at their appointed time, then My covenant may also be broken with David My servant so that he will not have a son to reign on his throne, and with the Levitical priests, My ministers. As the host of heaven cannot be counted and the sand of the sea cannot be measured, so I will multiply the descendants of David My servant and the Levites who minister to Me.’ ”