If you are guilty of this sin, do not let the day pass until you repent. If you are living in some secret sin, or are fostering impure thoughts, make up your mind that by the grace of God you will be delivered. I don't believe a man who is guilty of this sin is ever going to see the kingdom of God unless he repents in sackcloth and ashes, and does all he can to make restitution. AN EVIL HARVEST. Even in this life adultery and uncleanness bring their awful results, both physical and mental. The pleasure and excitement that lead so many astray at the beginning soon pass away, and only the evil remains. Vice carries a sting in its tail, like the scorpion. The body is sinned against, and the body sooner or later suffers. "Every sin that a man doeth is without the body: but he that committeth fornication sinneth against his own body," said Paul. Nature herself punishes with nameless diseases, and the man goes down to the grave rotten, leaving the effects of his sin to blight his posterity. There are nations whose manhood has been eaten out by this awful scourge. It drags a man lower than the beasts. It stains the memory. I believe that memory is "the worm that never dies," and the memory is never cleansed of obscene stories and unclean acts. Even if a man repents and reforms he often has to fight the past. Lust gave Samson into the power of Delilah, who robbed him of his strength. It led David to commit murder and called down upon him the wrath of God, and if he had not repented he would have lost heaven. I believe that if Joseph had responded to the enticement of Potiphar's wife, his light would have gone out in darkness. It ends in one or other of two ways: either in remorse and shame because of the realization of the loss of purity, with a terrible struggle against a hard taskmaster; or in hardness of heart, brutalizing of the finer senses, which is a more dreadful condition. We hear a good deal about intemperance nowadays. That sin advertises itself; it shows its marks upon the face and in the conduct. But this hides itself away under the shadow of the night. A man who tampers with this evil goes on step by step until his character is blasted, his reputation ruined, his health gone, and his life made as dark as hell. May God wake up the nation to see how this awful sin is spreading! Will any one deny that the house of the strange woman is "the way to hell, going down to the chambers of death," as the Bible says? Are there not men whose characters have been utterly ruined for this life through this accursed sin? Are there not wives who would rather sink into their graves than live? Many a man went with a pure woman to the altar a few years ago, and promised to love and cherish her. Now he has given his affections to some vile harlot, and brought ruin on his wife and children! ARE YOU GUILTY?