If David’s stone knocked Goliath unconscious, then he killed Goliath with his own sword when he ran over to him. He would have to run in order to get to him before he regained consciousness. Such a victory would be especially humiliating to the enemy.1
50 Ainsi, avec une fronde et une pierre, David fut plus fort que le Philistin; il le terrassa et lui ôta la vie, sans avoir d'épée à la main.