Each son was the leader of several family groups.
Heman’s sons that served were Bukkiah, Mattaniah, Uzziel, Shubael, and Jerimoth; Hananiah, Hanani, Eliathah, Giddalti, and Romamti Ezer; Joshbekashah, Mallothi, Hothir, and Mahazioth.
The names of Gershon’s sons were Libni and Shimei.
Levi lived 137 years. Levi’s sons were Gershon, Kohath, and Merari.
The Kohath family groups were: Amram, Izhar, Hebron, and Uzziel.
The families of Libni and Shimei belonged to the family of Gershon. They were the Gershonite family groups.
“Count all the people of the Gershon family. List them by family and family group.