Ex 7:8-13 8 Then GOD spoke to Moses and Aaron. He said, 9 "When Pharaoh speaks to you and says, 'Prove yourselves. Perform a miracle,' then tell Aaron, 'Take your staff and throw it down in front of Pharaoh: It will turn into a snake.'" 10 Moses and Aaron went to Pharaoh and did what GOD commanded. Aaron threw his staff down in front of Pharaoh and his servants, and it turned into a snake. 11 Pharaoh called in his wise men and sorcerers. The magicians of Egypt did the same thing by their incantations: 12 each man threw down his staff and they all turned into snakes. But then Aaron's staff swallowed their staffs. 13 Yet Pharaoh was as stubborn as ever — he wouldn't listen to them, just as GOD had said.