Isaiah 5:25-28

25Therefore the anger of the LORD was kindled against his people, and he stretched out his hand against them and struck them, and the mountains quaked; and their corpses were as refuse in the midst of the streets. For all this his anger has not turned away, and his hand is stretched out still. 26He will raise a signal for nations far away, and whistle for them from the ends of the earth; and behold, quickly, speedily they come! 27None is weary, none stumbles, none slumbers or sleeps, not a waistband is loose, not a sandal strap broken; 28their arrows are sharp, all their bows bent, their horses’ hoofs seem like flint, and their wheels like the whirlwind.