2 Chronicles 30:3; 2 Chronicles 29:34

for they could not keep it bat that time cbecause the priests had not consecrated themselves in sufficient number, nor had the people assembled in Jerusalem


34 But the priests were too few and could not flay all the burnt offerings, so until other priests had consecrated themselves, wtheir brothers the Levites helped them, until the work was finishedxfor the Levites were more upright in heart than the priests in consecrating themselves.