'Serpents' in the Bible

Behold, I send you forth as sheep in the midst of wolves: be ye therefore wise as serpents, and harmless as doves.

Ye serpents, ye offspring of vipers, how shall ye escape the judgment of hell?

they shall take up serpents, and if they drink any deadly thing, it shall in no wise hurt them; they shall lay hands on the sick, and they shall recover.

Behold, I have given you authority to tread upon serpents and scorpions, and over all the power of the enemy: and nothing shall in any wise hurt you.

Neither let us make trial of the Lord, as some of them made trial, and perished by the serpents.

For the power of the horses is in their mouth, and in their tails: for their tails are like unto serpents, and have heads; and with them they hurt.