The other thing to be noticed is Nahum’s feeling of the incoherence and mercenariness of the vast population of Niniveh. Niniveh’s command of the world had turned her into a great trading power. Under Assurbanipal the lines of ancient commerce had been diverted so as to pass through her. The immediate result was an enormous increase of population, such as the world had never before seen within the limits of one city. But this had come out of all races and was held together only by the greed of gain. What had once been a firm and vigorous nation of warriors, irresistible in their united impact upon the world, was now a loose aggregate of many peoples, without patriotism, discipline or sense of honour. Nahum likens it to a reservoir of waters,[273] which as soon as it is breached must scatter, and leave the city bare. The Second Isaiah said the same of Babylon, to which the bulk of Niniveh’s mercenary populace must have fled:— _Thus are they grown to thee, they who did weary thee, Traders of thine from thy youth up; Each as he could escape have they fled; None is thy helper._[274] The prophets saw the truth about both cities. Their vastness and their splendour were artificial. Neither of them, and Niniveh still less than Babylon, was a natural centre for the world’s commerce. When their political power fell, the great lines of trade, which had been twisted to their feet, drew back to more natural courses, and Niniveh in especial became deserted. This is the explanation of the absolute collapse of that mighty city. Nahum’s foresight, and the very metaphor in which he expressed it, were thoroughly sound. The population vanished like water. The site bears little trace of any disturbance since the ruin by the Medes, except such as has been inflicted by the weather and the wandering tribes around. Mosul, Niniveh’s representative to-day, is not built upon it, and is but a provincial town. The district was never meant for anything else.