Exodus 6:14-19

14These were the heads of their families: The sons of Reuben the firstborn son of Israel were Hanok and Pallu, Hezron and Karmi. These were the clans of Reuben. 15The sons of Simeon were Jemuel, Jamin, Ohad, Jakin, Zohar and Shaul the son of a Canaanite woman. These were the clans of Simeon. 16These were the names of the sons of Levi according to their records: Gershon, Kohath and Merari. Levi lived 137 years. 17The sons of Gershon, by clans, were Libni and Shimei. 18The sons of Kohath were Amram, Izhar, Hebron and Uzziel. Kohath lived 133 years. 19The sons of Merari were Mahli and Mushi. These were the clans of Levi according to their records.