Numbers 3:19-21

American Standard Version

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.

²¹ Of Gershon was the family of the Libnites, and the family of the Shimeites: these are the families of the Gershonites.