An excellent book that clearly communicates that at the heart of the Christian faith is the worship of God. The goal of theology is the worship of God. The posture of theology is on ones knees. The mode of theology is repentance. (Sinclair B. Ferguson, pastor of St. Georges Tron Church in Glasgow, Scotland and professor of systematic theology at Westminster Theological Seminary in Philadelphia). Ryken does a wonderful job of putting forth the essential elements that must be evident in the lives of those who adhere to the doctrines of Calvinism they are a God-centered mind, a penitent spirit, a grateful heart, a submissive will, a holy life, and a glorious purpose. Using the story of Isaiah chapter 6, Ryken demonstrates these characteristics in the life of Isaiah as well as arguing that these attributes should be part of the committed Christian life. Ryken is honest enough to point out that Calvinism carries with it the unfortunate concept to many of pride and indifference and Ryken clearly communicates that these attributes have no place in the humble walk of a true believer. This is a wonderful and concise read for those wanting to know more about what it means to be a Calvinist.