Parallel
Genesis 49:17
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
Dan shall be a serpent by the way, an adder (note: Heb. an arrow snake) in the path, that biteth the horse heels, so that his rider shall fall backward.
He will be a snake by the road, a viper in the path that bites the horse’s heels so that its rider tumbles backward.