Joseph Benson's Commentary of the Old and New Testaments - Job 12:18
Job 12:18. He looseth the bond of kings He takes from them the power and authority wherewith they ruled their subjects; ruled them with rigour, perhaps tyrannised over and enslaved them: and he divests them of that majesty which he had stamped upon them, and by which they kept their people in awe. These God can, and often does, take away from them, and thereby free the people from their bonds, of which we have abundance of instances in the history of different nations; and girdeth their... read more
Albert Barnes' Notes on the Whole Bible - Job 12:18
He looseth the bond of kings - The bond of kings (מוּסר mûsâr) here means that by which they bind others. Their power over others he loosens or takes away.And girdeth their loins with a girdle - That is, he girds them with a rope or cord, and leads them away as prisoners. The whole series of remarks here refers to the reverses and changes in the conditions of life. The meaning here is, that the bonds of authority which they imposed on others are unbound, and that their own loins are bound... read more