From the Introduction by Sinclair B. Ferguson'Mystery' is a biblical word that over the years has been reduced in meaning. Taking on an atmosphere very different to the sense in which it was used for example by the apostle Paul. It is important therefore in opening these pages to realize that in discussing Christianity's mysteries Crawford is dealing with realities that can be known by us only if God himself reveals them. They come to us recorded in the pages of Scripture, not as a result of our own abilities to engage in reasoning. Thus The Mysteries of Christianity is in essence an exposition and defence of Christianity as a supernatural, Trinitarian faith at the heart of which lie the mysteries of the incarnation, the atonement, the sovereign work of the Holy Spirit, and the marvels of divine providence.