by James Montgomery Boice
There are always people who will say that faith is something that must be entirely divorced from evidence. But that is not stated in the Bible. Faith is believing in something or someone on the basis of evidence and then acting upon it. In this case, John has provided evidence for the full deity of Jesus so that readers, whether in his age or ours, might believe it and commit their lives to Jesus as their Savior… Sometime ago I was talking to a young man who was very critical of Christianity.
“Have you investigated the evidence?” I asked him.
“What do you mean? How does one do that?” he asked.
“Go home this week and begin to read John’s Gospel,” I answered. “But before you begin, take a moment to pray something like this: ‘God, I do not know if you exist or, if you do, whether you hear me. But if you exist and if you hear me, I want you to know that I am an honest seeker after truth. If this Book of John can really speak to me and show me that Jesus is the Son of God and is God, I ask you to prove that to me while I read it. And if you prove it, then I will believe in him and serve him forever.’ ” I told him that if he did that, God would speak to him and that he would be convinced that all the things that are written about Jesus of Nazareth in this book are true and that he is the Son of God and our Savior.
The young man went home. I saw him a week later, and I asked, “Did you read the book?”
He answered, “Well, I have to admit that there are other things to which I give a higher priority.”
Here is another case. A Christian at the University of Pennsylvania entered into a series of Bible studies in John’s Gospel with a young woman who was not a Christian. The two young women went through several chapters where Jesus is declared many times to be God, but none of it clicked with the non-Christian. Suddenly, in the midst of a study of the third chapter of John, and after many weeks of study, the inquiring non-Christian exclaimed, “Why, I see it! Jesus Christ is God! He is God.” That was the turning point, and several weeks later she became a Christian.
(The Gospel of John: An Expositional Commentary)