1 Chronicles 23:12-14

CLV(i) 12 Sons of Kohath [are] Amram, Izhar, Hebron, and Uzziel, four. 13 Sons of Amram:Aaron and Moses; and Aaron is separated for his sanctifying the holy of holies, he and his sons--unto the eon, to make perfume before Yahweh, to serve Him, and to bless in His name--unto the eon. 14 As to Moses, the man of Elohim, his sons are called after the tribe of Levi.