You might as well try to describe a sunset to a blind man, play music for a deaf man, talk to a dead man, as to discuss the deep things of God with an unconverted sinner. “…the natural man receiveth not the things of the Spirit of God…” (I Corinthians 2:14). We might as well try to catch sunbeams with a fishhook or talk nuclear physics with a monument in a city park. The most erudite Ph. D. cannot take it in any better than a hillbilly; it is casting pearls before swine. As far as spiritual realities are concerned, a man who has not been born again is blind and can’t see, deaf and can’t hear, dead and can’t feel.