Exodus Chapter 6 Verse 21And the sons of Izhar; Korah, and Nepheg, and Zichri.

Go in, speak unto Pharaoh king of Egypt, that he let the children of Israel go out of his land.

And Moses spake before the LORD, saying, Behold, the children of Israel have not hearkened unto me; how then shall Pharaoh hear me, who [am] of uncircumcised lips?

And the LORD spake unto Moses and unto Aaron, and gave them a charge unto the children of Israel, and unto Pharaoh king of Egypt, to bring the children of Israel out of the land of Egypt.

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.

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] an hundred thirty and seven years.

The sons of Gershon; Libni, and Shimi, 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] an hundred thirty and three years.

And the sons of Merari; Mahali and Mushi: these [are] the families of Levi 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] an hundred and thirty and seven years.

And the sons of Uzziel; Mishael, and Elzaphan, and Zithri.

And Aaron took him Elisheba, daughter of Amminadab, sister of Naashon, 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 Korhites.

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 of the Levites according to their families.

These [are] that Aaron and Moses, to whom the LORD said, Bring out the children of Israel from the land of Egypt according to their armies.

These [are] they which 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] the LORD spake unto Moses in the land of Egypt,

That the LORD spake unto Moses, saying, I [am] the LORD: speak thou unto Pharaoh king of Egypt all that I say unto thee.

And Moses said before the LORD, Behold, I [am] of uncircumcised lips, and how shall Pharaoh hearken unto me?

And the LORD said unto Moses, See, I have made thee a god to Pharaoh: and Aaron thy brother shall be thy prophet.

The Book of Exodus, Chapter 6, Verse 21