Exodus 7:20-21

LEB^{(i) 20} And Moses and Aaron did so, as Yahweh had commanded, and he raised the staff and struck the water that was in the Nile before the eyes of Pharaoh and before the eyes of his servants, and all of the water that was in the Nile was changed to blood. ²¹ And the fish that were in the Nile died, and the Nile stank, and the Egyptians were not able to drink water from the Nile, and the blood was in all the land of Egypt.