Yahweh said to Joshua, Don't be afraid because of them; for tomorrow at this time will I deliver them up all slain before Israel: you shall hamstring their horses, and burn their chariots with fire.
God wished to deprive them of all stimulants to audacity, in order that they might live quietly contented with their own limits, and not unjustly attack their neighbors. And experience showed, that when a bad ambition had impelled their kings to buy horses, they engaged in wars not less rashly than unsuccessfully. It was necessary, therefore, to render the horses useless for war, by cutting their sinews, and to destroy the chariots, in order that the Israelites might not become accustomed to the practices of the heathen. 