2 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
29:5And he saith to them, `Hear me, O Levites, now, sanctify yourselves, and sanctify the house of Jehovah, God of your fathers, and bring out the impurity from the sanctuary,
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.