Exodus 7:13 ASV

¹¹  Then Pharaoh also called for the wise men and the sorcerers: and they also, the magicians of Egypt, did in like manner with their enchantments.

¹²  For they cast down every man his rod, and they became serpents: but Aaron's rod swallowed up their rods.

¹³  And Pharaoh's heart was hardened, and he hearkened not unto them; as Jehovah had spoken.

¹⁴  And Jehovah said unto Moses, Pharaoh's heart is stubborn, 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 to meet him; and the rod which was turned to a serpent shalt thou take in thy hand.