The Bible applied to the heart by the Holy Ghost is the grand instrument by which souls are first converted to God. That mighty change is generally begun by some text or doctrine of the Word brought home to a man's conscience. In this way the Bible has worked moral miracles by thousands. It has made drunkards become sober, unchaste people become pure, thieves become honest, and violent-tempered people become meek. It has wholly altered the course of men's lives. It has caused their old things to pass away, and make all their ways new. It has taught worldly people to seek first the kingdom of God. It has taught lovers of pleasure to become lovers of God. It has taught the stream of men's affections to run upwards instead of running downwards. It has made them think of heaven, instead of always thinking of earth, and live by faith, instead of living by sight. All this it has done in every part of the world. All this it is doing still. What are the pretended Romish miracles, which weak men believe, compared to all this, even if they were true? Those are the truly great miracles which are yearly worked by the Word.
J.C. Ryle, How Readest Thou? (Moscow: Charles Nolan Publishers, 2002), 29.