2 Chronicles 29:4-17

4And he brought in the priests and the Levites, and gathered them together into the broad place on the east, 5and said unto them, Hear me, ye Levites; now sanctify yourselves, and sanctify the house of Jehovah, the God of your fathers, and carry forth the filthiness out of the holy place. 6For our fathers have trespassed, and done that which was evil in the sight of Jehovah our God, and have forsaken him, and have turned away their faces from the habitation of Jehovah, and turned their backs. 7Also they have shut up the doors of the porch, and put out the lamps, and have not burned incense nor offered burnt-offerings in the holy place unto the God of Israel. 8Wherefore the wrath of Jehovah was upon Judah and Jerusalem, and he hath delivered them to be tossed to and fro, to be an astonishment, and a hissing, as ye see with your eyes. 9For, lo, our fathers have fallen by the sword, and our sons and our daughters and our wives are in captivity for this. 10Now it is in my heart to make a covenant with Jehovah, the God of Israel, that his fierce anger may turn away from us. 11My sons, be not now negligent; for Jehovah hath chosen you to stand before him, to minister unto him, and that ye should be his ministers, and burn incense.

12Then the Levites arose, Mahath, the son of Amasai, and Joel the son of Azariah, of the sons of the Kohathites; and of the sons of Merari, Kish the son of Abdi, and Azariah the son of Jehallelel; and of the Gershonites, Joah the son of Zimmah, and Eden the son of Joah; 13and of the sons of Elizaphan, Shimri and Jeuel; and of the sons of Asaph, Zechariah and Mattaniah; 14and of the sons of Heman, Jehuel and Shimei; and of the sons of Jeduthun, Shemaiah and Uzziel. 15And they gathered their brethren, and sanctified themselves, and went in, according to the commandment of the king by the words of Jehovah, to cleanse the house of Jehovah. 16And the priests went in unto the inner part of the house of Jehovah, to cleanse it, and brought out all the uncleanness that they found in the temple of Jehovah into the court of the house of Jehovah. And the Levites took it, to carry it out abroad to the brook Kidron. 17Now they began on the first day of the first month to sanctify, and on the eighth day of the month came they to the porch of Jehovah; and they sanctified the house of Jehovah in eight days: and on the sixteenth day of the first month they made an end.