Exodus 7:3-12

3But I will make Pharaoh’s heart stubborn so I can multiply my miraculous signs and wonders in the land of Egypt.

4Even then Pharaoh will refuse to listen to you. So I will bring down my fist on Egypt. Then I will rescue my forces—my people, the Israelites—from the land of Egypt with great acts of judgment.

5When I raise my powerful hand and bring out the Israelites, the Egyptians will know that I am the Lord.”

6So Moses and Aaron did just as the Lord had commanded them.

7Moses was eighty years old, and Aaron was eighty-three when they made their demands to Pharaoh.

8Then the Lord said to Moses and Aaron,

9“Pharaoh will demand, ‘Show me a miracle.’ When he does this, say to Aaron, ‘Take your staff and throw it down in front of Pharaoh, and it will become a serpent.’”

10So Moses and Aaron went to Pharaoh and did what the Lord had commanded them. Aaron threw down his staff before Pharaoh and his officials, and it became a serpent!

11Then Pharaoh called in his own wise men and sorcerers, and these Egyptian magicians did the same thing with their magic.

12They threw down their staffs, which also became serpents! But then Aaron’s staff swallowed up their staffs.