Exodus 6:29

24 And sons of Korah [are] Assir, and Elkanah, and Abiasaph: these [are] families of the Korhite.

25 And Eleazar, Aaron`s son, hath taken to him [one] of the daughters of Putiel for a wife to himself, and she beareth to him Phinehas: these [are] heads of the fathers of the Levites, as to their families.

26 This [is] Aaron -- and Moses -- to whom Jehovah said, `Bring ye out the sons of Israel from the land of Egypt, by their hosts;`

27 these are they who are speaking unto Pharaoh king of Egypt, to bring out the sons of Israel from Egypt, this [is] Moses -- and Aaron.

28 And it cometh to pass in the day of Jehovah`s speaking unto Moses in the land of Egypt,

29 that Jehovah speaketh unto Moses, saying, `I [am] Jehovah, speak unto Pharaoh king of Egypt all that I am speaking unto thee.`

30 And Moses saith before Jehovah, `Lo, I [am] of uncircumcised lips, and how doth Pharaoh hearken unto me?`