6:10. And the Lord spoke to Moses, saying:
6:11. Go in, and speak to Pharao king of Egypt, that he let the children of Israel go out of his land.
6:12. Moses answered before the Lord: Behold the children of Israel do not hearken to me: and how will Pharao hear me, especially as I am of uncircumcised lips?
Uncircumcised lips… So he calls the defect he had in his words, or utterance.
6:13. And the Lord spoke to Moses and Aaron, and he gave them a charge unto the children of Israel, and unto Pharao the king of Egypt, that they should bring forth the children of Israel out of the land of Egypt.
6:14. These are the heads of their houses by their families. The sons of Ruben the firstborn of Israel: Henoch and Phallu, Hesron and Charmi.
6:15. These are the kindreds of Ruben. The sons of Simeon, Jamuel and Jamin, and Ahod, and Jachin, and Soar, and Saul the son of a Chanaanitess: these are the families of Simeon.
6:16. And these are the names of the sons of Levi by their kindreds: Gerson, and Caath, and Merari. And the years of the life of Levi were a hundred and thirty-seven.
6:17. The sons of Gerson: Lobni and Semei, by their kindreds.
6:18: The sons of Caath: Amram, and Isaar, and Hebron and Oziel. And the years of Caath's life, were a hundred and thirty-three.