I. And first, then, we read, "Marvel not that I said unto thee, Ye must be born again." Here we have the total setting aside of man in his very best estate. If I must be born again, if I must have a new life, a new nature, then it matters not in the smallest degree what I can or cannot boast of. Man, as born of a woman, enters this world with the image of his fallen parent stamped upon him. Man, as he came from the hand of his Creator, was made in the "image of God." Man, as he issues from the womb of his mother, bears the image and likeness of a fallen creature. Hence the force of our Lord's expression, "Ye must be born again." It is not said, Ye _must_ mend, ye must try and be better, ye must alter your mode of living, ye must turn over a new leaf. Had it been thus, Nicodemus would never have asked, "How can these things be?" A man of the Pharisees would have understood any or all of these things. A change of conduct, a change of character, any moral reform, any self-improvement, is perfectly intelligible to a Pharisee of every age; but to be told "Ye _must_ be _born_ again" can only be understood by one who has reached the end of himself and his doings; who has been brought to see that in him, that is in his flesh, dwelleth no good thing; who sees himself as a thorough bankrupt without a certificate, who can never again set up on his own account. He must get a new life to which the verdict of bankruptcy cannot apply, and he must trade in the wealth of another, on which creditors have no possible claim. There is immense power in this little word "_must_." It bears upon all alike. It speaks to the drunkard, and says, "You must be born again." It addresses the most rigid teetotaler, and says, "You must be born again." It speaks to every class, to every condition, to every grade and shade of character, to man in every rank and every clime, to every creed and every denomination, in its own clear, emphatic, sweeping style, and says, "You _must_ be born again." It bears down with far more weight upon the conscience than any appeal that could be made on the ground of moral conduct. It does not interfere in the least with the question of moral reform, in any one of its many phases. It allows as broad a margin as any philanthropist or moral reformer may desire. It does not disturb the various distinctions which society, public opinion, law or equity has established. It leaves all these things perfectly untouched, but it raises its clear and commanding voice above them all, and says to the sinner--to man as born of a woman--to the worst and to the best of men, "You _must_ be born again." It demands not reformation, but regeneration; not amendment, but a new life.