Isaiah 5:26-29

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.

29Their roaring is like a lion, like young lions they roar; they growl and seize their prey; they carry it off, and none can rescue.