Let the priests also, who approach the Lord, sanctify themselves, lest the Lord break through ¹  against them.”

and to all the infants, wives, sons, and daughters of the entire assembly listed in the genealogical records, for they faithfully consecrated themselves.

But there were not enough priests to skin all the animals, ¹  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.) ²