And Moses said unto Yahweh, O Yahweh, I am not eloquent, neither before, nor since thou hast spoken unto thy servant: but I am slow of speech, and of a slow tongue.
And Moses spake before Yahweh, saying, Behold, the children of Israel have not hearkened unto me; how then shall Pharaoh hear me, who am of uncircumcised lips?
Then said I, 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 mine eyes have seen the King, Yahweh of hosts.