When Pharaoh shall speak to you, saying, Show a miracle for you: then you shall say to Aaron, Take your rod, and cast it before Pharaoh, and it shall become a serpent.
And Moses stretched forth his rod over the land of Egypt, and the LORD brought an east wind on the land all that day, and all that night; and when it was morning, the east wind brought the locusts.
And Moses stretched forth his rod toward heaven: and the LORD sent thunder and hail, and the fire ran along on the ground; and the LORD rained hail on the land of Egypt.
Speak, and say, Thus said the Lord GOD; Behold, I am against you, Pharaoh king of Egypt, the great dragon that lies in the middle of his rivers, which has said, My river is my own, and I have made it for myself.
But he answered and said to them, An evil and adulterous generation seeks after a sign; and there shall no sign be given to it, but the sign of the prophet Jonas: