17 Dan will be a snake by the roadside, a viper along the path, that bites the horse’s heels so that its rider tumbles backward.

Read Genesis 49:17 Using Other Translations

Dan shall be a serpent by the way, an adder in the path, that biteth the horse heels, so that his rider shall fall backward.
Dan shall be a serpent in the way, a viper by the path, that bites the horse's heels so that his rider falls backward.
Dan will be a snake beside the road, a poisonous viper along the path that bites the horse’s hooves so its rider is thrown off.