Hawkins' Concentric Circle Theory (2014). All other theoretical models did not deal with personality theory. In Anderson's (2006) approach, he addressed the dysfunctional behavior of individuals by recognizing the “kingdom of darkness” (p. 29). Anderson's approach is very powerful because it brings attention to the spiritual warfare battle that many Christians are struggling with. He does a splendid job explaining how our time systems influence our dysfunctional behavior and how it manifests physically in individuals. Anderson did one thing that was gratifying to this author, he used the Scriptures to support his theory and not just to theorize his personal interpretation.