'Serpent' in the Bible

As when one fleeth from the face of the lion, And the bear hath met him, And he hath come in to the house, And hath leant his hand on the wall, And the serpent hath bitten him.

And if they be hid in the top of Carmel, From thence I search out, and have taken them, And if they be hid from Mine eyes in the bottom of the sea, From thence I command the serpent, And it hath bitten them.