1 Chronicles 23:6-13

6And David divided them into courses according to the sons of Levi: Gershon, Kohath, and Merari.

7Of the Gershonites: Ladan and Shimei. 8The sons of Ladan: Jehiel the chief, and Zetham, and Joel, three. 9The sons of Shimei: Shelomoth, and Haziel, and Haran, three. These were the heads of the fathers’housesof Ladan. 10And the sons of Shimei: Jahath, Zina, and Jeush, and Beriah. These four were the sons of Shimei. 11And Jahath was the chief, and Zizah the second: but Jeush and Beriah had not many sons; therefore they became a fathers’ house in one reckoning.

12The sons of Kohath: Amram, Izhar, Hebron, and Uzziel, four. 13The sons of Amram: Aaron and Moses; and Aaron was separated, that he should sanctify the most holy things, he and his sons, for ever, to burn incense before Jehovah, to minister unto him, and to bless in his name, for ever.