'Serpent' in the Bible

Then He said, “Throw it on the ground.” So Moses threw it on the ground, and it became a [living] serpent [like the royal symbol on the crown of Pharaoh]; and Moses ran from it.

“When Pharaoh says to you, ‘Work a miracle [to prove your authority],’ then you say to Aaron, ‘Take your staff and throw it down before Pharaoh, so that it may become a serpent.’”

So Moses and Aaron came to Pharaoh, and did just as the Lord had commanded; Aaron threw down his staff before Pharaoh and his servants, and it became a serpent.

Go to Pharaoh in the morning as he is going out to the water, and wait for him on the bank of the Nile; and you shall take in your hand the staff that was turned into a serpent.