2 Chronicles 29:15; 2 Chronicles 29:34

15 When they had assembled their fellow Levites and consecrated themselves, they went in to purify the temple of the LORD, as the king had ordered, following the word of the LORD.

34 The priests, however, were too few to skin all the burnt offerings; so their relatives the Levites helped them until the task was finished and until other priests had been consecrated, for the Levites had been more conscientious in consecrating themselves than the priests had been.