Exodus 7:15-18

15In the morning meet Pharaoh when he’s on his way to the Nile. Wait for him on the bank of the river. Take along the staff that turned into a snake.

16Say to him, ‘The Lord God of the Hebrews sent me to tell you, “Let my people go to worship me in the desert.” So far you have not listened.

17Here is what the Lord says: This is the way you will recognize that I am the Lord: With this staff in my hand, I’m going to strike the Nile, and the water will turn into blood.

18The fish in the Nile will die, and the river will stink. The Egyptians will not be able to drink any water from the Nile.’ ”