Our trouble is that we are trying to confirm the truth of Christianity by an appeal to external evidence. We are saying, “Well, look at this fellow. He can throw a baseball farther than anybody else and he is a Christian, therefore Christianity must be true.” “Here is a great statesman who believes the Bible. Therefore, the Bible must be true.” We quote Daniel Webster, or Roger Bacon. We write books to show that some scientist believed in Christianity: therefore, Christianity must be true. We are all the way out on the wrong track, brother! That is not New Testament Christianity at all. That is a pitiful, whimpering, drooling appeal to the flesh.
Tozer, A. W. How to Be Filled with the Holy Spirit (Kindle Locations 244-249). Kindle Edition.