And Moses said to Jehovah, O my Lord, I am not a man of words now, nor since You have spoken to Your servant, but I am slow of speech and of a slow tongue.
And Moses spoke before Jehovah, saying, Behold, the sons of Israel have not listened to me. How then shall Pharaoh hear me, since I have lips that are not circumcised?
Then I said, Woe is me! For I am undone; for I am a man of unclean lips, and I dwell in the midst of a people of unclean lips; for my eyes have seen the King, Jehovah of Hosts.