To one of the most religious men of His day, Jesus said, “Ye must be born again” (John 3:7). Nicodemus could not substitute his profound knowledge of religion for spiritual rebirth, and neither can we. I have read a book on water skiing, and it did not take long for me to learn that I could never learn to water ski by reading a book—I would have to experience it.
I have read a number of books on golf, but none of them seems to improve my game; I must get out on the golf course and play. You may study theology and religion, but there comes a time when you must experience Christ for yourself.
Resources: billygraham.org
Thoughts From A Mustard Seed's Blog 