Exodus 7:9-11

Amplified Bible, Classic Edition

⁹ When Pharaoh says to you, Prove [your authority] by a miracle, then tell Aaron, Throw your rod down before Pharaoh, that it may become a serpent.

¹⁰ So Moses and Aaron went to Pharaoh and did as the Lord had commanded; Aaron threw down his rod before Pharaoh and his servants, and it became a serpent.

¹¹ Then Pharaoh called for the wise men [skilled in magic and divination] and the sorcerers (wizards and jugglers). And they also, these magicians of Egypt, did similar things with their enchantments and secret arts.