Exodus 7:16-18

New Century Version

¹⁶ Tell him: The Lord, the God of the Hebrews, sent me to you. He said, ‘Let my people go worship me in the desert.’ Until now you have not listened. ¹⁷ This is what the Lord says: ‘This is how you will know that I am the Lord. I will strike the water of the Nile River with this stick in my hand, and the water will change into blood. ¹⁸ Then the fish in the Nile will die, and the river will begin to stink. The Egyptians will not be able to drink the water from the Nile.’”