Nahum 2:6

The gates of the rivers shall be opened, and the palace shall be disolved - All gives way in an instant at the will of God; the strife is hushed; no more is said of war and death; there is no more resistance or bloodshed; no sound except the wailing of the captives, the flight of those who can escape, while the conquerors empty it of the spoil, and then she is left a waste. The swelling of the river and the opening made by it may have given rise to the traditional account of Ctesias, although obviously exaggerated as to the destruction of the wall. The exaggerated character of that tradition is not inconsistent with, it rather implies, a basis of truth. It is inconceivable that it should have been thought, that walls, of the thickness which Ctesias had described, were overthrown by the swelling of any river, unless some such event as Ctesias relates, that the siege was ended by an entrance afforded to the enemy through some bursting in of the river, had been true.

Nahum speaks nothing of the wall, but simply of the opening of “the gates of the river,” obviously the gates, by which the inhabitants could have access to the rivers , which otherwise would be useless to them except as a wall. These “rivers” correspond to the “rivers,” the artificial divisions of the Nile, by which No or Thebes was defended, or “the rivers of Babylon” Psalms 137:1 which yet was washed by the one stream, the Euphrates. But Nineveh was surrounded and guarded by actual rivers, the Tigris and the Khausser, and, (assuming those larger dimensions of Nineveh, which are supported by evidences so various ) the greater Zab, which was “called the frantic Zab on account of the violence of its current.” “The Zab contained (says Ainsworth ), when we saw it, a larger body of water than the Tigris, whose tributaries are not supplied by so many snow-mountains as those of the Zab.” Of these, if the Tigris be now on a level lower than the rains of Nineveh, it may not have been so formerly.

The Khausser, in its natural direction, ran through Nineveh where, now as of old, it turns a mill, and must, of necessity, have been fenced by gates; else any invader might enter at will: as, in modern times, Mosul has its “gate of the bridge.” A break in these would obviously let in an enemy, and might the more paralyze the inhabitants, if they had any tradition, that the river alone could or would be their enemy, as Nahum himself prophesied. Subsequently inaccuracy or exaggeration might easily represent this to be an overthrow of the walls themselves. It was all one, in which way the breach was made.

The palace shall be dissolved - The prophet unites the beginning and the end. The river-gates were opened; what had been the fence against the enemy became an entrance for them: with the river, there poured in also the tide of the people of the enemy. The palace, then, the imperial abode, the center of the empire, embellished with the history of its triumphs, sank, was disolved , and ceased to be. It is not a physical loosening of the sun-dried bricks by the stream which would usually flow harmless by; but the dissolution of the empire itself. : “The temple, that is, his kingdom was destroyed.” The palaces both of Khorsabad and Kouyunjik lay near the Khausser and both bear the marks of fire .