This book applies the insights of biblical theology to present a comprehensive defense of justification by faith alone, the doctrine at the heart of the gospel. It treats several theological traditions and current exegetical, theological, and ecumenical debates. It even includes discussion on the covenant of works, union with Christ, the New Perspective on Paul, Eastern Orthodoxy, and Roman Catholicism. John V. Fesko’s work reflects a pastor-scholar’s sensitivity to these important issues. For those looking for a series engagement with both historical and contemporary concerns over the doctrine of justification, this is your book.