Nahum 2:8

Nineveh had been as placid as the waters around the city for most of her history. This is the first explicit reference to Nineveh since Nahum 1:1, yet because of Nahum 1:1 we know that the prophet’s revelations of destruction dealt with Nineveh. Nahum now saw it inundated with water and enemy soldiers and its inhabitants fleeing in panic, like water gushing from a broken dam. Someone might call to them to stop, perhaps to defend the city, but no one would turn back.