'Serpent' in the Bible

And he said, Cast it on the ground. And he cast it on the ground, and it became a serpent; and Moses fled from before it.

When Pharaoh shall speak to you, saying, Do a miracle for yourselves, then thou shalt say unto Aaron, Take thy staff and cast it before Pharaoh it will become a serpent.

And Moses and Aaron went in to Pharaoh, and did so, as Jehovah had commanded; and Aaron cast down his staff before Pharaoh, and before his bondmen, and it became a serpent.

Go unto Pharaoh in the morning behold, he will go out unto the water and take thy stand by the bank of the river in front of him; and take in thy hand the staff that was turned into a serpent.