1 Chronicles 23:12-13, 18-20

The sons of Kohath: Amram, Izhar, Hebron, and Uzziel—four in all. The sons of Amram: Aaron and Moses. Aaron was set apart to consecrate him as most holy, he and his sons forever, to burn incense before the LORD, attend to His service, and to bless [worshipers] in His name forever.

The son of Izhar: Shelomith the chief. The sons of Hebron: Jeriah the first, Amariah the second, Jahaziel the third, and Jekameam the fourth. The sons of Uzziel: Micah the first and Isshiah the second.