3. keepers of the house—namely, the hands and arms which protected the body, as guards do a palace (Ge 49:24; Job 4:19; 2Co 5:1), are now palsied.
strong men … bow—(Jud 16:25, 30). Like supporting pillars, the feet and knees (So 5:15); the strongest members (Ps 147:10).
grinders—the molar teeth.
cease—are idle.
those that look out of the windows—the eyes; the powers of vision, looking out from beneath the eyelids, which open and shut like the casement of a window.