In this book, LaHaye gives a clear analysis of personalities both with and without the influence of the indwelling gift of the Holy Spirit. To do so he utilizes the ancient four temperaments: Sanguine, Choleric, Melancholy, and Phlegmatic. Given a person’s natural temperament, the Holy Spirit can manifest supernatural characteristics in his life. God’s Spirit can release an individual from a life.
The Apostle Paul was, in my opinion, a strong Choleric. Before his conversion on the Damascus Road Paul used his temperament strengths to advance the cause of Judaism, self-interest and terrorizing Christians. The Choleric remains a Choleric before and after their salvation. You need to read this powerful book about the Spirit-Controlled Temperament.