Albert Barnes' Bible Commentary
Nahum 3:17
Thy crowned are as the locust, and thy captains as the great locusts - What he had said summarily under metaphor, the prophet expands in a likeness. “The crowned” are probably the subordinate princes, of whom Sennacherib said, “Are not my princes altogether kings?” Isaiah 10:8. It has been observed that the headdress of the Assyrian Vizier has the ornament which “throughout the whole series of sculptures is the distinctive mark of royal or quasi-royal authority.” : “All high officers of state, ‘the crowned captains,’ were adorned with diadems, closely resembling the lower band of the royal mitre, separated from the cap itself. Such was that of the vizier, which was broader in front than behind, was adorned with rosettes and compartments, and terminated in two ribbons with embroidered and fringed ends, which hung down his back.” “Captain” is apparently the title of some military ounce of princely rank.
One such Jeremiah Jeremiah 51:27, in a prophecy in which he probably alludes to this, bids place over the armies of Ararat, Minni, and Ashchenaz, to marshall them against Babylon, against which he summons the cavalry like the rough locust. The “captains” are likened to the “great caterpillars,” either as chief in devastation, or as including under them the armies antler their command, who moved at their will. These and their armies now subsided into stillness for a time under the chill of calamity, like the locust “whose nature it is, that, torpid in the cold, they fly in the heat.” The stiffness of the locusts through the cold, when they lie motionless, heaps upon heaps, hidden out of sight, is a striking image of the helplessness of Nineveh’s mightiest in the day of her calamity; then, by a different part of their history, he pictures their entire disappearance. : “The locusts, are commonly taken in the morning when they are agglomerated one on another, in the places where they passed the night. As soon as the sun warms them, they fly away.” “When the sun ariseth, they flee away,” literally, “it is chased away.”
One and all; all as one. As at God’s command the plague of locusts, which He had sent on Egypt, was removed; “there remained not one locust in all the coasts of Egypt” Exodus 10:19; so the mighty of Nineveh were driven north, with no trace where they had been, where they were. “The wind carried them away Isaiah 41:16; the wind passes over him and he is not, and his place knows him no more Psalms 103:16. The triumphing of the wicked is short, and the joy of the ungodly for a moment: though his excellency mount up to the heavens, and his head reach unto the clouds, yet he shall perish for ever; they which have seen him shall say, where is he? He shall fly away, as a dream, and shall not be formal; neither shall his place any were bebold him Job 20:5.
Where they are - So Zechariah asks, “Your fathers, where are they?” Zechariah 1. History, experience, human knowledge can answer nothing. They can only say, where they are not. God alone can answer that much-containing word, “Where-they.” They had disappeared from human sight, from their greatness, their visible being, their place on earth.