'Sanctify' in the Bible

Who say, ‘Keep to yourself, do not come near me,For I am too holy for you [and you might defile me]!’These [people] are smoke in My nostrils,A fire that burns all the day.

“Those who [vainly attempt to] sanctify and cleanse themselves to go to the gardens [to sacrifice to idols],Following after one in the center,Who eat swine’s flesh, detestable things and mice,Will come to an end together,” says the Lord.