"Regeneration is an intensely solemn thing. The new birth is the dividing line between Heaven and Hell. In God’s sight there are but two classes of people on this earth: those who are dead in sins, and those who are walking in newness of life. In the physical realm there is no such thing as being between life and death. A man is either dead or alive. The vital spark may be very dim, but while it exists, life is present. Let that spark go out altogether, and though you may dress the body in beautiful clothes, nevertheless, it is nothing more than a corpse. So it is in the spiritual realm. We are either saints or sinners, spiritually alive or spiritually dead, children of God or children of the Devil. In view of this solemn fact, how momentous is the question, Have I been born again? If not, and you die in your present state, you will wish you had never been born at all."-From the Introduction.
Here we learn the necessity, nature, and effects of the miracle of the new birth.