Job 12:21 - Matthew Poole's English Annotations on the Holy Bible

He poureth contempt upon princes, i.e. he makes them contemptible to their subjects and others. Weakeneth, Heb. he looseth the girdle; which phrase signifies weakness, as Isaiah 5:27; as the girding of the girdle notes strength and power, as Isaiah 22:21, Isaiah 45:5; both these phrases being taken from the quality of their garments, which being loose and long, did disenable a man for travel or work.