Then Moses said to the Lord, “O my Lord, I am not eloquent, neither before nor since You have spoken to Your servant. But I am slow of speech, and of a slow tongue.”
Moses spoke before the Lord, saying, “Behold, the Israelites have not listened to me. How then shall Pharaoh listen to me, as I am of uncircumcised lips?”
And I said: “Woe is me! For I am undone because 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, the Lord of Hosts.”