Wind and Truth: Book Five of the Stormlight Archive

Wind and Truth: Book Five of the Stormlight Archive by Brandon Sanderson

Wind and Truth is about as long as the Old Testament.  It also deals with religion and warfare. There are quotes from other "works" that are generally previous books in the series. The scope ranges from individual actors, to Cosmere level discussions. Most of the narrative takes place in a few days times. However, there are chapters that go back thousands of years. In this world, there are gods and people. The gods themselves are also "people" and have their foibles. Dalinar Kholin has challenged the god Odium to a duel. Odium used to be somebody else and we hear his history in some of the flashbacks. There are other characters like Jasnah and Szeth and Pattern. They are fighting battles, discussing slavery and other things. It is difficult to keep track of everything that is going on.