Isaiah 10:16

Fat ones. For the symbolic use of the word translated “fat,” see on Gen. 49:20; Eze. 34:16-18. In Judges 3:29 the word is translated “lusty.” Obviously the “men of valour” there mentioned, that is, warriors, were not all literally “fat,” but rather, sturdy and vigorous. Here the “fat ones” are the well-fleshed rulers of Assyria, and, perhaps, the Assyrian army also. God will lay His hand upon them and leave them emaciated and gaunt. In other words, Assyrian power would vanish away.

Fire. God would set their glorious palaces afire and make them a heap of smoking ruins (see Amos 1:4). A century after Isaiah uttered this declaration the Assyrian Empire lay in ruins. Nineveh was a mass of ashes, and Asshur, Calah, and Dur Sharrukin were being covered by the desert sands.