We now hear what kind of doctrine was committed to Paul: The doctrine of the Gospel, the doctrine of the revelation of the Son of God. This doctrine differs greatly from the Law. The Law terrorizes the conscience. The Law reveals the wrath and judgment of God. The Gospel does not threaten. The Gospel announces that Christ is come to forgive the sins of the world. The Gospel conveys to us the inestimable treasures of God.
Martin Luther on Galatians 1:16
Law, Grace, & Daily Living 