IV. God will visit them for their iniquity; and all this is intended for the punishment of sin, and particularly the sin of pride, v. 11. This puts wormwood and gall into the affliction and misery, 1. That sin must now have its punishment. Though Babylon be a little world, yet, being a wicked world, it shall not go unpunished. Sin brings desolation on the world of the ungodly; and when the kingdoms of the earth are quarrelling with one another it is the fruit of God's controversy with them all. 2. That pride must now have its fall: The haughtiness of the terrible must now be laid low, particularly of Nebuchadnezzar and his son Belshazzar, who had, in their pride, trampled upon, and made themselves very terrible to, the people of God. A man's pride will bring him low.