Bow.Bible-Study)Exodus 7:12-15 (KJV) 23.For they cast down every man his rod.

(Bow.Bible-Study)Exodus 7:12-15 (KJV) 23.For they cast down every man his rod, and they became serpents: but Aaron's rod swallowed up their rods.
13 And he hardened Pharaoh's heart, that he hearkened not unto them; as the Lord had said.
14 And the LORD said unto Moses, Pharaoh's heart is hardened, he refuseth to let the people
go.
15 Get thee unto Pharaoh in the morning; lo, he goeth out unto the water; and thou shalt stand by the river's brink against he come; and the rod which was turned to a serpent shalt thou take in thine hand.