'Sanctify Them' in the Bible

But the priests were too few, so that they could not flay all the burnt-offerings: wherefore their brethren the Levites helped 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 the charge of the killing of the passovers for every one that was not clean, to sanctify them to the LORD.