Exodus 7:9-11

International Standard Version

⁹ “When Pharaoh says to you, ‘Perform a miraculous sign,’ then you are to say to Aaron, ‘Take your staff and throw it in front of Pharaoh.’ It will become a serpent.”

¹⁰ So Moses and Aaron went in to Pharaoh and did what the Lord had commanded them. Aaron threw his staff in front of Pharaoh and his officials, and it became a serpent. ¹¹ Then Pharaoh also called for the wise men and sorcerers, and they—along with the Egyptian magicians—did the same thing with their secret arts.