27 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.

Read Isaiah 5:27 Using Other Translations

None shall be weary nor stumble among them; none shall slumber nor sleep; neither shall the girdle of their loins be loosed, nor the latchet of their shoes be broken:
None is weary, none stumbles, none slumbers or sleeps, not a waistband is loose, not a sandal strap broken;
They will not get tired or stumble. They will not stop for rest or sleep. Not a belt will be loose, not a sandal strap broken.