2 Chronicles 29:34

But the priests were too few, so that they could not flay all
the burnt offerings
Take off the skins of them, which used to be done by the priests, ( Leviticus 1:6 ) , wherefore their brethren the Levites did help them till the work was
ended;
assisted in the flaying of the sacrifices, until they had gone through the service of this time, and the skins of all the sacrifices were flayed off: and until the other priests had sanctified themselves;
who had been negligent of it, or had defiled themselves by idolatry: for the Levites were more upright in heart to sanctify themselves than
the priests;
were more ready to do it, and did it with greater cheerfulness and good will; were not backward to do it, but did it at once.