11 Then the king called for his wise men and magicians, and by their magic they did the same thing.
12 They threw down their walking sticks, and the sticks turned into snakes. But Aaron's stick swallowed theirs.
13 The king, however, remained stubborn and, just as the Lord had said, the king would not listen to Moses and Aaron.
14 Then the Lord said to Moses, “The king is very stubborn and refuses to let the people go.
15 So go and meet him in the morning when he goes down to the Nile. Take with you the walking stick that was turned into a snake, and wait for him on the riverbank.
16 Then say to the king, ‘The Lord, the God of the Hebrews, sent me to tell you to let his people go, so that they can worship him in the desert. But until now you have not listened.
17 Now, Your Majesty, the Lord says that you will find out who he is by what he is going to do. Look, I am going to strike the surface of the river with this stick, and the water will be turned into blood.