These are the heads of their fathers' houses: The sons of Reuben the firstborn of Israel; Hanoch, and Pallu, Hezron, and Carmi: these are the families of Reuben.
All Commentaries on Exodus 6:14 Go To Exodus 6
Augustine of Hippo
AD 430
There is no doubt that this is a mysterious passage. The Scripture wishes to demonstrate the origin of Moses, because his action now required it. His descent began from the firstborn of Jacob, that is, Reuben, and then to Simeon, and then to Levi. It went no further, because Moses was descended from Levi. These men who are mentioned here had already been mentioned among the seventyfive men in whom Israel entered Egypt. For God did not want the first or the second tribe, but the third—that is, the tribe of Levi—to be the priestly tribe.