In Bound and Free: How Faith Alone Frames the Christian Life , William M. Marsh takes a fresh look at Martin Luther's 1520 treatise, The Freedom of a Christian . In this work, Marsh points to the duality of being both bound and free in Christ. Exploring the concept of "simul," Marsh offers the reality of the Christian being "simultaneously" a sinner and just. Bound and Free is not only a theology for the Christian Life or another book on how to effectively live by faith. It goes much deeper than that. It explores the tension of the Christian life. Being both sinner and saved, being broken and yet restored, and being sinful but just in the eyes of the Lord.