John Gill Commentary 2 Chronicles 29:12

"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;" — 2 Chronicles 29:12 (ASV)

Ver. 12-14. 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.