There are lots of opinions on how to summarize the story of reality God gives us in the Bible. Mike Vlach argues “kingdom” is the grand theme of Scripture, which I first encountered at Seminary and through Alva McCain’s book. Indeed, Vlach’s new release is often seen as supplanting McClain’s tome as the premier biblical theological study on the Kingdom of God, from a dispensational perspective.
I agree that “kingdom” is the main theme of the Bible. Here is Vlach’s summary of the Bible’s storyline with “kingdom” as the theme (pg. 23):