The Hebrew is, ‘Woe to the city of bloods;’ – ‘it is all full of lies and robbery; the prey departeth not’ – a reference back to Nahum 2:12. This is the reason why Nineveh is being judged.
We see that spiritually in Rome and her false doctrine and the hordes of people misled and deceived by Rome. She's been a tremendous killer and hater of souls in the accumulation of her power. The same is true of communism: the killings of communism, literally, and of course spiritually. These are movements that bring massacre. Theological liberalism took away the gospel, took away grace, took away the atonement, took away conversion and redemption doctrines. The ‘corpses’ are piled high of lost and misguided souls, and God brings these enemies of truth down for this, one after the other. So too with scientific humanism, and with Islam. And who will destroy who?
After so long a time, the people of Nineveh are confident that their wickedness and their violence – which scarcely troubled them because of the hardness of their hearts – is now forgotten. What God could keep track of all they have done? The record of it is surely lost in the past. And so man finds ways of building up his confidence that he can never be called to account for his sins. But no, the proof that nothing has been forgotten, and none of the evil they have done will be overlooked, is brought forward in this indictment against them by the Lord. This is just a sample of their past wickedness, but every detail is recorded in God’s book.