'Heels' in the Bible

Dan shall be a serpent in the way, An adder in the path, That biteth the horse's heels, So that his rider falleth backward.

Terrors shall make him afraid on every side, And shall chase him at his heels.

Wherefore should I fear in the days of evil, When iniquity at my heels compasseth me about?

And if thou say in thy heart, Wherefore are these things come upon me? for the greatness of thine iniquity are thy skirts uncovered, and thy heels suffer violence.