Matthew Henry Commentary Exodus 6:14-30

"These are the heads of their fathers` houses. The sons of Reuben the first-born of Israel: Hanoch, and Pallu, Hezron, and Carmi; these are the families of Reuben. And the sons of Simeon: Jemuel, and Jamin, and Ohad, and Jachin, and Zohar, and Shaul the son of a Canaanitish woman; these are the families of Simeon. And these are the names of the sons of Levi according to their generations: Gershon, and Kohath, and Merari; and the years of the life of Levi were a hundred thirty and seven years. The sons of Gershon: Libni and Shimei, according to their families. And the sons of Kohath: Amram, and Izhar, and Hebron, and Uzziel; and the years of the life of Kohath were a hundred thirty and three years. And the sons of Merari: Mahli and Mushi. These are the families of the Levites according to their generations. And Amram took him Jochebed his father`s sister to wife; and she bare him Aaron and Moses: and the years of the life of Amram were a hundred and thirty and seven years. And the sons of Izhar: Korah, and Nepheg, and Zichri. And the sons of Uzziel: Mishael, and Elzaphan, and Sithri. And Aaron took him Elisheba, the daughter of Amminadab, the sister of Nahshon, to wife; and she bare him Nadab and Abihu, Eleazar and Ithamar. And the sons of Korah: Assir, and Elkanah, and Abiasaph; these are the families of the Korahites. And Eleazar Aaron`s son took him one of the daughters of Putiel to wife; and she bare him Phinehas. These are the heads of the fathers` [houses] of the Levites according to their families. These are that Aaron and Moses, to whom Jehovah said, Bring out the children of Israel from the land of Egypt according to their hosts. These are they that spake to Pharaoh king of Egypt, to bring out the children of Israel from Egypt: these are that Moses and Aaron. And it came to pass on the day when Jehovah spake unto Moses in the land of Egypt, that Jehovah spake unto Moses, saying, I am Jehovah: speak thou unto Pharaoh king of Egypt all that I speak unto thee. And Moses said before Jehovah, Behold, I am of uncircumcised lips, and how shall Pharaoh hearken unto me?" — Exodus 6:14-30 (ASV)

Moses and Aaron were Israelites, raised up to them from among their brothers, as Christ also was to 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 to it.

Those who have spoken rashly with their lips should reflect on it with regret, as Moses seems to do here. “Uncircumcised” is used in Scripture to indicate the unsuitability of anything to fulfill its proper purpose; for example, 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 beneficial to place no confidence in ourselves; all our sufficiency must be in the Lord.

We can never trust ourselves too little, or our God too much. I can do nothing by myself, the apostle said, but I can do all things through Christ which strengtheneth me.