Exodus 7:9-11

New Century Version

⁹ “Moses, when the king asks you to do a miracle, tell Aaron to throw his walking stick down in front of the king, and it will become a snake.”

¹⁰ So Moses and Aaron went to the king as the Lord had commanded. Aaron threw his walking stick down in front of the king and his officers, and it became a snake.

¹¹ So the king called in his wise men and his magicians, and with their tricks the Egyptian magicians were able to do the same thing.