Numbers 3:17 - 3:20

17 These then are the sons of Levi by their names:

Gershon and Kohath and Merari.

And these are the names of the sons of Gershon by their families:

Libni and Shimei;

and the sons of Kohath by their families:

Amram and Izhar, Hebron and Uzziel;

and the sons of Merari by their families:

Mahli and Mushi. These are the families of the Levites according to their fathers’ households.