'Sanctify Them' in the Bible

But the priests were too few, so that they could not skin all the burnt offerings: therefore 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.

For there were many in the congregation that were not sanctified: therefore the Levites had charge of the killing of the passover lambs for everyone that was not clean, to sanctify them unto the LORD.