2 Chronicles 29:10-11
10-11"I have decided to make a covenant with the God of Israel and turn history around so that God will no longer be angry with us. Children, don't drag your feet in this! God has chosen you to take your place before him to serve in conducting and leading worship—this is your life work; make sure you do it and do it well."
12-17The Levites stood at attention: Mahath son of Amasai and Joel son of Azariah from the Kohathites; Kish son of Abdi and Azariah son of Jehallelel from the Merarites; Joah son of Zimmah and Eden son of Joah from the Gershonites; Shimri and Jeiel sons of Elizaphan; Zechariah and Mattaniah sons of Asaph; Jehiel and Shimei of the family of Heman; Shemaiah and Uzziel of the family of Jeduthun. They presented themselves and their brothers, consecrated themselves, and set to work cleaning up The Temple of God as the king had directed—as God directed! The priests started from the inside and worked out; they emptied the place of the accumulation of defiling junk—pagan rubbish that had no business in that holy place—and the Levites hauled it off to the Kidron Valley. They began the Temple cleaning on the first day of the first month and by the eighth day they had worked their way out to the porch—eight days it took them to clean and consecrate The Temple itself, and in eight more days they had finished with the entire Temple complex.