Before we pronounce Catholics and Protestants all brothers and sisters in Christ, we must deal honestly with the question of whether one side or the other proclaims “a different gospel.” Whoever is guilty of this is accursed—anathematized by the the very Word of God. It is not a triviality that can be laid aside and ignored. Both Catholics and Protestants have historically understood the magnitude of the difference between their separate belief systems. Because it goes to the very heart of the gospel,