"Hast thou entered into the treasures of the snow? or hast thou seen the treasures of the hail, which I have reserved against the time of trouble, against the day of battle and war?" (Job 38:22-23). It is as if God had said, "Hail is one of my reserve battalions."
At the time of the French invasion of Russia, the Russians had a saying that winter was their chief general. There is one historic instance in the history of Israel when God called upon the reserves of the hail. It was during the war of the conquest of Canaan, when Joshua and his army fought against the five kings of Canaan and won the victory which determined the destiny of Palestine. In that decisive battle a storm of hail fought on the side of Joshua. "The Lord cast down great stones from heaven upon them . . . and they died: they were more which died with hailstones than they whom the children of Israel slew with the sword." (Josh. 10:11.)
This allusion in the book of Job to the reserves of God opens up grand forest avenues of thought. In every time of trouble it is good to remember that God has reserves upon which he has not yet called.