None of them grows weary or stumbles; no one slumbers or sleeps. No belt is loose, and no sandal strap broken.
Isaiah 5:27 In-Context
Therefore the LORD’s anger burns against his people; his hand is raised and he strikes them down. The mountains shake, and the dead bodies are like refuse in the streets. Yet for all this, his anger is not turned away, his hand is still upraised.
He lifts up a banner for the distant nations, he whistles for those at the ends of the earth. Here they come, swiftly and speedily!
Not one of them grows tired or stumbles, not one slumbers or sleeps; not a belt is loosened at the waist, not a sandal strap is broken.
Their arrows are sharp, all their bows are strung; their horses’ hooves seem like flint, their chariot wheels like a whirlwind.
Their roar is like that of the lion, they roar like young lions; they growl as they seize their prey and carry it off with no one to rescue.