If we want men to be truly converted, we must set before them the plan of salvation very clearly and distinctly. I meet with hundreds of persons who have had some kind of work upon their hearts, but they tell me that they walk in a mist. They have not quite understood it. They felt that they were on the rock, but they were not quite sure what the rock really was. It is a good thing that our zeal for God should be according to knowledge, that we know what we believe, and why we believe it, and know that we are saved and how we are saved and why we are saved; for if there be a mistake here, it may be fatal.
– Charles Spurgeon