" The mere belief of the facts and doctrines of Christianity will never save our souls. Such belief is no better than the belief of devils. They all believe and know that Jesus is the Christ. They believe that He will one day judge the world and cast them down to endless torment in hell. It is a solemn and sorrowful thought that on these points some professing Christians have even less faith than the devil. "

― J.C. Ryle , Expository Thoughts on the Gospel of Mark: A Commentary [Updated]