2 Chronicles 13:9
13:9 But you banished the Lord’s priests, Aaron’s descendants, and the Levites, and appointed your own priests just as the surrounding nations do! Anyone who comes to consecrate himself with a young bull or seven rams becomes a priest of these fake gods!
2 Chronicles 29:34
29:34 But there were not enough priests to skin all the animals, so their brothers, the Levites, helped them until the work was finished and the priests could consecrate themselves. (The Levites had been more conscientious about consecrating themselves than the priests.)