NET

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.)

Darby

34 Only the priests were too few, and they could not flay all the burnt-offerings; therefore their brethren the Levites helped them, until the work was ended, and until the priests had hallowed themselves; for the Levites were more upright in heart to hallow themselves than the priests.

KJV

34 But the priests were too few, so that they could not flay all the burnt offerings: wherefore their brethren the Levites did help them, till the work was ended, and until the [other] priests had sanctified themselves: for the Levites [were] more upright in heart to sanctify themselves than the priests.