Charles H. Spurgeon on Psalms 18:12

Suddenly the terrible artillery of heaven was discharged; the brightness of lightning lit up the clouds as with a glory proceeding from him who was concealed within the cloudy pavilion; and volleys of hailstones and coals of fire were hurled forth upon the enemy. The lightnings seemed to cleave the clouds and kindle them into a blaze, and then hailstones and flakes of fire with flashes of terrific grandeur terrified the sons of men.