At that time Joshua spoke to the LORD in the day when the LORD gave the Amorites over to the sons of Israel, and he said in the sight of Israel,
“Sun, stand still at Gibeon, and moon, in the Valley of Aijalon.”
And the sun stood still, and the moon stopped, until the nation took vengeance on their enemies.
Joshua 10:12-13 (ESV)
Those for whom the Lord Himself fights know that they need not do battle in darkness, though it should be the season for night.
Children of light carry The Day Of The Lord with them at all times, for it lightens their way and exposes the enemy right before them.
Yet for the wicked and unrepentant, the Day of the Lord is darkness, and not light. But the man whom the light of the world has permeated becomes a beacon of its radiance. For these, it is always the day, though it be the hour of darkness. For these, victory is seen where unlightened eyes are shrouded in gloom.
But those whose way is not lit by that ever-present flame of the Day of the Lord, and those for whom the Day of the Lord is darkness and gloom: these are the armies of darkness, set against the Lord’s army. These cannot live in the light of the Day, and retreat into deeper darkness as the mighty men of valour deliver vengeance upon the enemies of God.
Vengeance is the Lord’s; and the men of His warfare bear the sword of His mouth in the brightness of His countenance. They carry His Day into the night, to the great dismay and ultimate downfall of those who have made peace with the encroaching darkness.
In Him was life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not.
John 1:4-5 (KJV)