"[Joshua had his war chiefs to place their feet on the necks of the five Amorite kings]... not in a contemptuous and insulting manner, not through vanity and haughtiness, but for the mortification of the kings; and as a token of their extreme subjection, and as proper punishment for their crimes of idolatry, tyranny, and cruelty; and by way of terror to others of the kings of Canaan that should fight against them, and as a pledge and confirmation of the subjection of the rest, as well as to fulfill the promises and predictions of God.” -John Gill