These be the heads - We have in the following verses, not a complete genealogy, but a summary account of the family of the two brothers. Moses records for the satisfaction of Hebrew readers, to whom genealogical questions were always interesting, the descent and position of the designated leaders of the nation. See Exodus 6:26-27.
Related Commentaries of Exodus 6:14
Exodus 6:14
14 These be the heads of their fathers' houses: The sons of Reuben the firstborn of Israel; Hanoch, and Pallu, Hezron, and Carmi: these be the families of Reuben.