5. And the Egyptians shall know that I am the LORD, when I stretch forth my hand upon Egypt, and bring out the children of Israel from among them.
6. And Moses and Aaron did as the LORD commanded them, so did they.
7. And Moses was eighty years old, and Aaron eighty and three years old, when they spoke to Pharaoh.
8. And the LORD spoke to Moses, and to Aaron, saying,
9. When Pharaoh shall speak to you, saying, Show a miracle for you: then thou shalt say to Aaron, Take thy rod, and cast it before Pharaoh, and it shall become a serpent.
10. And Moses and Aaron went in to Pharaoh, and they did so as the LORD had commanded: And Aaron cast down his rod before Pharaoh, and before his servants, and it became a serpent.
11. Then Pharaoh also called the wise-men, and the sorcerers: now the magicians of Egypt, they also did in like manner with their enchantments.
12. For they cast down every man his rod, and they became serpents: but Aaron's rod swallowed up their rods.
13. And he hardened Pharaoh's heart that he hearkened not to them; as the LORD had said.
14. And the LORD said to Moses, Pharaoh's heart is hardened; he refuseth to let the people go.
15. Go to Pharaoh in the morning; lo, he goeth out to the water, and thou shalt stand by the river's brink against he cometh; and the rod which was turned to a serpent shalt thou take in thy hand.
16. And thou shalt say to him, The LORD God of the Hebrews hath sent me to thee, saying, Let my people go, that they may serve me in the wilderness: and behold, hitherto thou wouldest not hear.