As the first book in a series of five on the Christian life, The Green Letters emphasizes both the doctrinal and experiential aspects of maturing in Christian living. The book is grounded in Scripture and enlivened by quotations from noted authors. "Not I, but Christ" is its theme. The author makes this arresting statement regarding the dynamics of the Christian life: "God . . . doesn't intend to help us live the Christian life. Immaturity...