“We cannot reach the soul, but the Holy Spirit can. He can give a sense of blood-bought pardon that shall dissolve a heart of stone. He can speak with that voice which wakes the dead and bids the sinner rise. He makes the guilty conscience dread the death that never dies. He can make Sinai’s thunders audible; yea, and He can make the sweet whisperings of Calvary enter into the soul. He has power over the heart of man.”
-–Charles H. Spurgeon, “The Power of the Holy Ghost” in Spurgeon’s Sermons, Vol. 1 (Grand Rapids: Baker, 1996), 124-5.