Would it surprise you to know that god is going to kill us all? For worshipping Baal? And he especially has a hate on for the kings and princes (i.e. the secular leaders?) He also promises to destroy the merchant class.
God expands on his list of cities and countries he plans to destroy in the near future. Nineveh, so important of late, will be literally left to the birds.
God is going to kill everything and everyone dead, except for a small group of true believers who will then go on to start a just society. This book is a repetitive snooze, but at least it's short.