All the ideas of Christianity might be discovered in some other religion, yet there would be in that other religion no Christianity. For Christianity depends, not upon a complex of ideas, but upon the narration of an event. Without that event, the world, in the Christian view, is altogether dark, and humanity is lost under the guilt of sin. There can be no salvation by the discovery of eternal truth, for eternal truth brings naught but despair, because of sin. But a new face has been put upon life by the blessed thing that God did when He offered up His only begotten Son.
Gresham Machen