Take the sum of the sons of Kohath from among the sons of Levi, by their families, by their fathers' houses,
Referenced Verses
Num 3:19 : 19 And the sons of Kohath by their families: Amram, and Izhar, Hebron, and Uzziel.
Num 3:27 : 27 And of Kohath was the family of the Amramites, and the family of the Izharites, and the family of the Hebronites, and the family of the Uzzielites: these are the families of the Kohathites.