4But Pharaoh will not heed you, so that I may lay My hand on Egypt and bring My armies and My people, the children of Israel, out of the land of Egypt by great judgments.
9“When Pharaoh speaks to you, saying, ‘Show a miracle for yourselves,’ then you shall say to Aaron, ‘Take your rod and cast it before Pharaoh, and let it become a serpent.’ ”
10So Moses and Aaron went in to Pharaoh, and they did so, just as the LORD commanded. And Aaron cast down his rod before Pharaoh and before his servants, and it became a serpent.
15Go to Pharaoh in the morning, when he goes out to the water, and you shall stand by the river’s bank to meet him; and the rod which was turned to a serpent you shall take in your hand.
16And you shall say to him, ‘The LORD God of the Hebrews has sent me to you, saying, “Let My people go, that they may serve Me in the wilderness”; but indeed, until now you would not hear!
17Thus says the LORD: “By this you shall know that I am the LORD. Behold, I will strike the waters which are in the river with the rod that is in my hand, and they shall be turned to blood.
19Then the LORD spoke to Moses, “Say to Aaron, ‘Take your rod and stretch out your hand over the waters of Egypt, over their streams, over their rivers, over their ponds, and over all their pools of water, that they may become blood. And there shall be blood throughout all the land of Egypt, both in buckets of wood and pitchers of stone.’ ”
20And Moses and Aaron did so, just as the LORD commanded. So he lifted up the rod and struck the waters that were in the river, in the sight of Pharaoh and in the sight of his servants. And all the waters that were in the river were turned to blood.
21The fish that were in the river died, the river stank, and the Egyptians could not drink the water of the river. So there was blood throughout all the land of Egypt.
