Genesis 49:17
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.
Cross-reference
Judges 16:22–30
Typology
Judges 16:22-30 shows Samson's final victory, a serpent-like strike bringing down the enemy.
Numbers 10:25
Parallel
In Numbers 10:25, Dan leads the rear guard — echoing the serpent biting the horse’s heels from behind in Jacob's blessing.