Nahum 1:6

"Who can stand before his indignation? and who can abide in the fierceness of his anger? his wrath is poured out like fire, and the rocks are broken asunder by him."

"Storm, tempest, cloud, drought, earthquake, and fire are the word-colors which Nahum uses to paint his picture of the day of God's wrath (against Nineveh) ... the nature of the calamity is to be, not political, but cosmical, due to miraculous, divine intervention, and not by armed forces."[6]

While only partly correct, Graham's comment is interesting, because the implication of Nahum's prophecy certainly does indicate that a great natural disturbance would be the ruin of Nineveh, but still did not rule out the element of military defeat. In the fulfillment, the calamity indeed was primarily the physical disturbance of the environment. Without the great and totally unexpected flood that demolished the city wall and opened it up to the invader, it was exceedingly unlikely that the siege of Nineveh would have been successful. Melting snows sent the Tigris and its tributaries into an extraordinarily high flood stage; that was the real ruin of Nineveh, and it was totally of God.