10. And the Lord spoke unto Moses, saying,
11. Go in, speak unto Pharaoh, king of Egypt, that he let the sons of Israel go out of his land.
12. And Moses answered before the Lord, saying, Behold, the sons of Israel do not hearken unto me; how then shall Pharaoh hear me, seeing I am of uncircumcised lips?
13. Then the Lord spoke unto Moses and unto Aaron and gave them a commandment unto the sons of Israel and unto Pharaoh king of Egypt, to bring the sons of Israel out of the land of Egypt.