5 All Egyptians will know that I am the Lord, when I stretch out my hand against Egypt and bring the Israelites out of their midst.
6 This, then, is what Moses and Aaron did. They did exactly as the Lord had commanded them.
7 Moses was eighty years old, and Aaron eighty-three, when they spoke to Pharaoh.
8 The Lord spoke to Moses and Aaron:
9 When Pharaoh demands of you, “Produce a sign or wonder,” you will say to Aaron: “Take your staff and throw it down before Pharaoh, and it will turn into a serpent.”
10 Then Moses and Aaron went to Pharaoh and did just as the Lord had commanded. Aaron threw his staff down before Pharaoh and his servants, and it turned into a serpent.
11 Pharaoh, in turn, summoned the wise men and the sorcerers, and they also, the magicians of Egypt, did the same thing by their magic arts.