Exodus 7:16-18

Complete Jewish Bible

¹⁶ and say to him, ‘Adonai, the God of the Hebrews, sent me to you to say: “Let my people go, so that they can worship me in the desert.” But until now you haven’t listened; ¹⁷ so Adonai says, “This will let you know that I am Adonai”: I will take the staff in my hand and strike the water in the river, and it will be turned into blood. ¹⁸ The fish in the river will die, the river will stink and the Egyptians won’t want to drink water from the river.’”