'Serpents' in the Bible

Behold, I send you as sheep in the midst of wolves; be therefore prudent as the serpents, and guileless as the doves.

Serpents, offspring of vipers, how should ye escape the judgment of hell?

they shall take up serpents; and if they should drink any deadly thing it shall not injure them; they shall lay hands upon the infirm, and they shall be well.

Behold, I give you the power of treading upon serpents and scorpions and over all the power of the enemy, and nothing shall in anywise injure you.

Neither let us tempt the Christ, as some of them tempted, and perished by serpents.

For the power of the horses is in their mouth and in their tails: for their tails are like serpents, having heads, and with them they injure.