Exodus 7:8-10

Revised Geneva Translation

⁸ And the LORD had spoken to Moses and Aaron, saying,

⁹ “If Pharaoh speaks to you, saying, ‘Show a miracle for yourselves’, then you shall say to Aaron, ‘Take your rod and cast it before Pharaoh.’ And it shall be turned into a serpent.”

¹⁰ Then Moses and Aaron went to Pharaoh and did just as the LORD had commanded. And Aaron cast forth his rod before Pharaoh, and before his servants, and it was turned into a serpent.