12 Then 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;
*Minor differences ignored. Grouped by changes, with first version listed as example.
On the triple division of the Levites, see 1-Chronicles 23:6; and on the musical Levites, see 1-Chronicles 25:1-6.
Then the Levites arose,.... Whose names are mentioned; of the Kohathites two, Mahath the son of Amashai, and Joel the son of Azariah; of the Merarites two, Kish the son of Abdi, and Azariah the son of Jehalelel; of the Gershonites two, Joah the son of Zimmah, and Eden the son of Joah; and of the family of Elizaphan, a Kohathite, two, Shimri and Jehiel; and of the family of Asaph, one of the chief singers in the times of David, two, Zechariah and Mattaniah; and of the family of Heman, another principal singer in the same times, two, Jehiel and Shimei; and of the family of Jeduthun, the third principal singer, the same with Ethan, two, Shemaiah and Uzziel, in all fourteen.
THE HOUSE OF GOD CLEANSED. (2Ch. 29:12-36)
Then the Levites arose--Fourteen chiefs undertook the duty of collecting and preparing their brethren for the important work of cleansing the Lord's house. Beginning with the outer courts--that of the priests and that of the people--the cleansing of these occupied eight days, after which they set themselves to purify the interior; but as the Levites were not allowed to enter within the walls of the temple, the priest brought all the sweepings out to the porch, where they were received by the Levites and thrown into the brook Kedron. This took eight days more. At the end of this period they repaired to the palace and announced that not only had the whole of the sacred edifice, within and without, undergone a thorough purification, but all the vessels which the late king had taken away and applied to a common use in his palace, had been restored, "and sanctified."
*More commentary available at chapter level.