Exodus 7:17-25

17This is what Adonai says: ‘By this you will know that I am Adonai. Behold, I will strike the waters that are in the river with the staff that is in my hand, and they will be turned to blood.

18The fish that are in the river will die, the river will become foul, and the Egyptians will hate to drink water from the Nile.”’

19Adonai 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 ponds, so that they become blood. There will be blood throughout all the land of Egypt, even in wooden and stone containers.”

20So Moses and Aaron did as Adonai commanded. He lifted up the staff and struck the waters that were in the river in the sight of Pharaoh and his servants, and all the waters of the Nile turned to blood.

21When the fish that were in the river died, the river became so foul that the Egyptians could not drink water from the river. The blood was throughout all the land of Egypt.

22But the magicians of Egypt did the same with their secret arts. So Pharaoh’s heart was hardened, and he did not listen to them—just as Adonai had said.

23Pharaoh turned and went into his house, and did not even take it to heart.

24So all the Egyptians dug around the river for water to drink, because they could not drink of the water from the Nile.

25Seven days were fulfilled after Adonai had struck the Nile.