איוב יב:כא פירוש: רש״י

and loosens the belt of the strong And He loosens the belt of the strong. He opens their belt to weaken them, like (Ps. 109:19), “and for the girdle (ולמזח) wherewith he is girded continually.”

the strong Heb. אפיקים, like (below 40:18), “as strong as (אפיקי) copper; (ibid. 41:7), “He is proud of the strength of (אפיקי) His scales.”