These be the heads {e} of their fathers' houses: The sons of Reuben the firstborn of Israel; Hanoch, and Pallu, Hezron, and Carmi: these be the families of Reuben.

(e) This genealogy shows whom Moses and Aaron came from.

Wesley's Notes

6:14 This genealogy ends in those two great patriots, Moses and Aaron; and comes in here to shew that they were Israelites, bone of their bone, and flesh of their flesh, whom they were sent to deliver, raised up unto them of their brethren, as Christ also should be, who was to be the prophet and priest, the Redeemer and law - giver of the house of Israel, and whose genealogy also like this was to be carefully preserved. The heads of the houses of three of the tribes are here named, agreeing with the accounts we had, Gen 46:8 - 27. Reuben and Simeon seem to be mentioned only for the sake of Levi, from whom Moses and Aaron descended, and all the priests of the Jewish church.

Jamieson-Fausset-Brown Bible Commentary

Ex 6:14-30. The Genealogy of Moses.

14, 15. These be the heads of their fathers' houses-chiefs or governors of their houses. The insertion of this genealogical table in this part of the narrative was intended to authenticate the descent of Moses and Aaron. Both of them were commissioned to act so important a part in the events transacted in the court of Egypt and afterwards elevated to so high offices in the government and Church of God, that it was of the utmost importance that their lineage should be accurately traced. Reuben and Simeon being the oldest of Jacob's sons, a passing notice is taken of them, and then the historian advances to the enumeration of the principal persons in the house of Levi [Ex 6:16-19].

Matthew Henry's Concise Commentary

6:14-30 Moses and Aaron were Israelites; raised up unto them of their brethren, as Christ also should be, who was to be the Prophet and Priest, the Redeemer and Lawgiver of the people of Israel. Moses returns to his narrative, and repeats the charge God had given him to deliver his message to Pharaoh, and his objection against it. Those who have spoken unadvisedly with their lips ought to reflect upon it with regret, as Moses seems to do here.Uncircumcised, is used in Scripture to note the unsuitableness there may be in any thing to answer its proper purpose; as the carnal heart and depraved nature of fallen man are wholly unsuited to the services of God, and to the purposes of his glory. It is profitable to place no confidence in ourselves, all our sufficiency must be in the Lord. We never can trust ourselves too little, or our God too much. I can do nothing by myself, said the apostle, but I can do all things through Christ which strengtheneth me.