4. When Pharaoh refuses to listen to you, then I’ll act against Egypt and I’ll bring my people the Israelites out of the land of Egypt in military formation by momentous events of justice.
5. The Egyptians will come to know that I am the Lord, when I act against Egypt and bring the Israelites out from among them."
6. Moses and Aaron did just as the Lord commanded them.
7. Moses was 80 years old and Aaron was 83 when they spoke to Pharaoh.
8. The Lord said to Moses and Aaron,
9. "When Pharaoh says to you, ‘Do one of your amazing acts,’ then say to Aaron, ‘Take your shepherd’s rod and throw it down in front of Pharaoh, and it will turn into a cobra.’"
10. So Moses and Aaron went to Pharaoh and did just as the Lord commanded. Aaron threw down his shepherd’s rod in front of Pharaoh and his officials, and it turned into a cobra.
11. Then Pharaoh called together his wise men and wizards, and Egypt’s religious experts did the same thing by using their secret knowledge.
12. Each one threw down his rod, and they turned into cobras. But then Aaron’s rod swallowed up each of their rods.
13. However, Pharaoh remained stubborn. He wouldn’t listen to them, just as the Lord had said.
14. Then the Lord said to Moses, "Pharaoh is stubborn. He still refuses to let the people go.
15. Go to Pharaoh in the morning. As he is going out to the water, make sure you stand at the bank of the Nile River so you will run into him. Bring along the shepherd’s rod that turned into a snake.
16. Say to him, The Lord, the Hebrews’ God, has sent me to you with this message: Let my people go so that they can worship me in the desert. Up to now you still haven’t listened.
17. This is what the Lord says: By this you will know that I am the Lord. I’m now going to hit the water of the Nile River with this rod in my hand, and it will turn into blood.
18. The fish in the Nile are going to die, the Nile will stink, and the Egyptians won’t be able to drink water from the Nile."
19. The Lord said to Moses, "Say to Aaron, ‘Take your shepherd’s rod and stretch out your hand over Egypt’s waters—over their rivers, their canals, their marshes, and all their bodies of water—so that they turn into blood. There will be blood all over the land of Egypt, even in wooden and stone containers.’"