Numbers 3:18 ASV

¹⁶  And Moses numbered them according to the word of Jehovah, as he was commanded.

¹⁷  And these were the sons of Levi by their names: Gershon, and Kohath, and Merari.

¹⁸  And these are the names of the sons of Gershon by their families: Libni and Shimei.

¹⁹  And the sons of Kohath by their families: Amram, and Izhar, Hebron, and Uzziel.

²⁰  And the sons of Merari by their families: Mahli and Mushi. These are the families of the Levites according to their fathers' houses.