And the truth that underlies that awful representation is the familiar one to which I have already referred in another connection, that, by the very laws of our nature, by the plain necessities of the case, all our moral qualities, be they good or bad, tend to increase by exercise. In whatever direction we move, the rate of progress tends to accelerate itself. And this is preeminently the case when the motion is downwards. Every day that a bad man lives he is a worse man. My friend! you are on a sloping descent. Imperceptibly--because you will not look at the landmarks--but really, and not so very slowly either; convictions are dying out, impulses to good are becoming feeble, habits of neglect of conscience are becoming fixed, special forms of sin--avarice, or pride, or lust--are striking their claws deeper into your soul, and holding their bleeding booty firmer. In all regions of life exercise strengthens capacity. The wrestler, according to the old Greek parable, who began by carrying a calf on his shoulders, got to carry an ox by and by.
It is a solemn thought this of the steady continuous aggravation of sin in the individual character. Surely nothing can be small which goes to make up that rapidly growing total. Beware of the little beginnings which 'eat as doth a canker.' Beware of the slightest deflection from the straight line of right. If there be two lines, one straight and the other going off at the sharpest angle, you have only to produce both far enough, and there will be room between them for all the space that separates hell from heaven! Beware of lading your souls with the weight of small single sins. We heap upon ourselves, by slow, steady accretion through a lifetime, the weight that, though it is gathered by grains, crushes the soul. There is nothing heavier than sand. You may lift it by particles. It drifts in atoms, but heaped upon a man it will break his bones, and blown over the land it buries pyramid and sphynx, the temples of gods and the homes of men beneath its barren solid waves. The leprosy gnaws the flesh off a man's bones, and joints and limbs drop off--he is a living death. So with every soul that is under the dominion of these lying desires--it is slowly rotting away piecemeal, 'waxing corrupt according to the lusts of deceit.'
II. Note how, this being so, we have here the hopeless command to put off the old man.
That command 'put it off' is the plain dictate of conscience and of common sense. But it seems as hopeless as it is imperative. I suppose everybody feels sometimes, more or less distinctly, that they ought to make an effort and get rid of these beggarly usurpers that tyrannise over will, and conscience, and life. Attempts enough are made to shake off the yoke. We have all tried some time or other. Our days are full of foiled resolutions, attempts that have broken down, unsuccessful rebellions, ending like the struggles of some snared wild creature, in wrapping the meshes tighter round us. How many times, since you were a boy or a girl, have you said--'Now I am _determined_ that I will never do that again. I have flung away opportunities. I have played the fool and erred exceedingly--but I now turn over a new leaf!' Yes, and you have turned it--and, if I might go on with the metaphor, the first gust of passion or temptation has blown the leaf back again, and the old page has been spread before you once more just as it used to be. The history of individual souls and the tragedy of the world's history recurring in every age, in which the noblest beginnings lead to disastrous ends, and each new star of promise that rises on the horizon leads men into quagmires and sets in blood, sufficiently show how futile the attempt in our own strength to overcome and expel the evils that are rooted in our nature.