17. These were the sons of Levi by name: Gershon, Kohath and Merari.
18. These were the names of the sons of Gershon, by their clans: Libni and Shimei.
19. The sons of Kohath, by their clans, were Amram, Izhar, Hebron and Uzziel.
20. The sons of Merari, by their clans, were Mahli and Mushi. These were the clans of the Levites by their ancestral houses.