There is first the awful power that evil once done has over us of repeating itself on and on. There is nothing more dreadful to a reflective mind than the damning influence of habit. The man that has done some wrong thing once is a _rara avis_ indeed. If once, then twice; if twice, then onward and onward through all the numbers. And the intervals between will grow less, and what were isolated points will coalesce into a line; and impulses wax as motives wane, and the less delight a man has in his habitual form of evil the more is its dominion over him, and he does it at last not because the doing of it is any delight, but because the _not_ doing of it is a misery. If you are to get rid of sin, and to eject the disease from a man, you have to deal with that awful degradation of character, and the tremendous chains of custom. That is one of the heads of the monster.
But, as I said, sin has reference to God, and there is another of the heads, for with sin comes guilt. The relation to God is perverted, and the man that has transgressed stands before Him as guilty, with all the dolefulness that that solemn word means; and that is another of the heads.
The third is this--the consequences that follow in the nature of penalty. 'Whatsoever a man soweth, that shall he also reap.' So long as there is a universal rule by God, in which all things are concatenated by cause and effect, it is impossible but that 'Evil shall slay the wicked.' And that is the third head. These three, habit, guilt, and penalty, have all to be dealt with if you are going to make a thorough job of the surgery.
And here, brethren, I want not to argue but to preach. Jesus Christ died on the Cross for you, and your sin was in His heart and mind when He died, and His atoning sacrifice cancels the guilt, and suspends all that is dreadful in the penalty of the sin. Nothing else--nothing else will do that. Who can deal with guilt but the offended Ruler and Judge? Who can trammel up consequences but the Lord of the Universe? The blood of Jesus Christ is the sole and sufficient oblation and satisfaction for the sins of the whole world.
That disposes of two of the monster's heads. What about the third? Who will take the venom out of my nature? What will express the black drop from my heart? How shall the Ethiopian change his skin or the leopard his spots? How can the man that has become habituated to evil 'learn to do well'? Superficially there may be much reformation. God forbid that I should forget that, or seem to minimise it. But for the thorough ejection from your nature of the corruption that you have yourselves brought into it, I believe--and that is why I am here, for I should have nothing to say if I did not believe it--I believe that there is only one remedy, and that is that into the sinful heart there should come, rejoicing and flashing, and bearing on its broad bosom before it all the rubbish and filth of that dunghill, the great stream of the new life that is given by Jesus Christ. He was crucified for our offences, and He lives to bestow upon us the fullness of His own holiness. So the monster's heads are smitten off. Our disease and the tendency to it, and the weakness consequent upon it, are all cast out from us, and He reveals Himself as 'the Lord who healeth thee.'
Now, dear brethren, you may say 'That is all very fine talking.' Yes! but it is something a great deal more than fine talking. For nineteen centuries have established the fact that it is so; and with all their imperfections there have been millions, and there are millions to-day, who are ready to say, 'Behold! it is not a delusion; it is not rhetoric, _I_ have trusted in Him and He has made _me_ whole.'