Authenticity

Supposing you had before you a manuscript of some great work, either a symphony or a novel. There then comes to you a person, saying, 'Here is a new bit of the manuscript that I found; it is the central passage of that symphony, or the central chapter of that novel. The text is incomplete without it. I have got the missing passage which is really the centre of the whole work.' The only thing you could do would be to put this new piece of the manuscript in that central position, and then see how it reacted on the whole rest of the work. If it constantly brought out new meanings for the whole of the rest of the work, if it made you notice things in the rest of the work which you had not noticed before, then I think you would decide that it was authentic. On the other hand, if it failed to do that, then, however attractive it was in itself, you would reject it.

- C. S. Lewis, The Grand Miracle (in Faith, Christianity and the Church, Harper Collins 2000, p. 4)

Lewis goes on to argue that Christ's resurrection, as the central miracle of Christianity, is integral to our faith. It cannot be excised, as some would have it, in order to make Christianity more palatable.