Exodus 7:17-19

Amplified Bible

¹⁷ Thus says the Lord, “By this you shall know and recognize and acknowledge that I am the Lord: look, with the staff in my hand I will strike the water in the Nile, and it shall be turned to blood. ¹⁸ The fish in the Nile will die, and the Nile will become foul, and the Egyptians will not be able to drink water from the Nile.”’” ¹⁹ Then the Lord said to Moses, “Say to Aaron, ‘Take your staff and stretch out your hand over the waters of Egypt, over their rivers, over their streams, over their pools, and over all their reservoirs of water, so that they may become blood; and there shall be blood throughout all the land of Egypt, in containers both of wood and of stone.’”