For every boot of the tramping warrior in battle tumult and every garment rolled in blood will be burned as fuel for the fire.
5. For every battle. Here commentators are nearly agreed that Isaiah intended to contrast the victory which God was about to give to his people with other victories. Others conquer by making a great slaughter of the enemies, but here the Lord will conquer by his own hand alone. He expresses more fully what he had said, As in the day of Midian.
Even in the darkest hour, God's people possess a nevertheless: they are troubled yet not forsaken, sorrowful yet always rejoicing. The God who forms light and creates darkness has set bounds to both; He can say to the dimness, Thus far you shall go and no further. This is our comfort when all grows black.
AI summary
Commenting on Isaiah 9:1-7
For every battle of the warrior is with confused noise,.... With the sound of the trumpet and as now with beating of drums, and the huzzas and shoutings of the soldiers, the stamping and neighing of horses, the rushing of chariots, and rumbling of wheels, and the clashing of swords, spears, and shields, and these sometimes striking one against another (k): and garments rolled in...