9And if they have no faith even in these two signs and will not give ear to your voice, then you are to take the water of the Nile and put it on the dry land: and the water you take out of the river will become blood on the dry land.
10And Moses said to the Lord, O Lord, I am not a man of words; I have never been so, and am not now, even after what you have said to your servant: for talking is hard for me, and I am slow of tongue.
11And the Lord said to him, Who has made man's mouth? who takes away a man's voice or hearing, or makes him seeing or blind? Is it not I, the Lord?
12So go now, and I will be with your mouth, teaching you what to say.
13And he said, O Lord, send, if you will, by the hand of anyone whom it seems good to you to send.
14And the Lord was angry with Moses, and said, Is there not Aaron, your brother, the Levite? To my knowledge he is good at talking. And now he is coming out to you: and when he sees you he will be glad in his heart.
15Let him give ear to your voice, and you will put my words in his mouth; and I will be with your mouth and with his, teaching you what you have to do.