2 Chronicles 29:13

9For behold, 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 the LORD, the God of Israel, that his fierce anger may turn away from us.

11My sons, don’t be negligent now; for the LORD has chosen you to stand before him, to minister to him, and that you 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.

15They gathered their brothers, sanctified themselves, and went in, according to the commandment of the king by the LORD’s words, to cleanse the LORD’s house.

16The priests went into the inner part of the LORD’s house to cleanse it, and brought out all the uncleanness that they found in the LORD’s temple into the court of the LORD’s house. The Levites took it from there to carry it out 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 they came to the LORD’s porch. They sanctified the LORD’s house in eight days, and on the sixteenth day of the first month they finished.