1 Chronicles 23:12-14

Young's Literal Translation

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 age, to make perfume before Jehovah, to serve Him, and to bless in His name -- unto the age.

¹⁴ As to Moses, the man of God, his sons are called after the tribe of Levi.