2 Chronicles 29:5-15

5 and said to them, "Hear me, Levites! Now sanctify yourselves, and sanctify the house of the LORD, the God of your fathers, and carry out the filth from the holy place.
6 For our fathers have been unfaithful and have done what was evil in the sight of the LORD our God; they have forsaken him, and have turned away their faces from the habitation of the LORD, and turned their backs.
7 They also shut the doors of the vestibule and put out the lamps, and have not burned incense or offered burnt offerings in the holy place to the God of Israel.
8 Therefore the wrath of the LORD came on Judah and Jerusalem, and he has made them an object of horror, of astonishment, and of hissing, as you see with your own eyes.
9 For lo, our fathers have fallen by the sword and our sons and our daughters and our wives are in captivity for this.
10 Now 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.
11 My sons, do not now be negligent, for the LORD has chosen you to stand in his presence, to minister to him, and to be his ministers and burn incense to him."
12 Then the Levites arose, Mahath the son of Ama'sai, and Jo'el the son of Azari'ah, of the sons of the Ko'hathites; and of the sons of Merar'i, Kish the son of Abdi, and Azari'ah the son of Jehal'lelel; and of the Gershonites, Jo'ah the son of Zimmah, and Eden the son of Jo'ah;
13 and of the sons of Eli-za'phan, Shimri and Jeu'el; and of the sons of Asaph, Zechari'ah and Mattani'ah;
14 and of the sons of Heman, Jehu'el and Shim'e-i; and of the sons of Jedu'thun, Shemai'ah and Uz'ziel.
15 They gathered their brethren, and sanctified themselves, and went in as the king had commanded, by the words of the LORD, to cleanse the house of the LORD.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.