It seems to me that the book of Joshua is a very simple book with two distinct parts. The first part is about how Joshua leads the Israelites to defeat all of these people in the promised land and take their land away from them. The second part of the Bible is about how the land is divided up amongst the Israelites. The part of land that is given to the people of Joshua is not big enough for them, so they decide to take some other people’s land instead. A city of refuge is established for people who have killed other people in their own tribe.