New Park Street Pulpit · Sermon No. 179
Delivered on Sabbath Morning, February 21, 1858.
“Keep thy heart with all diligence; for out of it are the issues of life.”—Proverbs 4:23.
WF I SHOULD VAINLY ATTEMPT to fashion my discourse after lofty models, I should this morning compare the human heart to the ancient city of Thebes, out of whose hundred gates multitudes of warriors were wont to march. As was the city, such were her armies, as was her inward strength, such were they who came forth of her. I might then urge the necessity of keeping the heart, because it is the metropolis of our manhood, the citadel and armory of our humanity. Let the chief fortress surrender to the enemy, and the occupation of the rest must be an easy task. Let the principal stronghold be possessed by evil, the whole land must be overrun thereby. Instead, however, of doing this, I shall attempt what possibly I may be able to perform, by a humble metaphor and a simple figure, which will be easily understood; I shall endeavor to set forth the wise man’s doctrine, that our life issues from the heart, and thus I shall labor to show the absolute necessity of keeping the heart with all diligence.
You have seen the great reservoirs provided by our water companies, in which the water which is to supply hundreds of streets and thousands of houses is kept. Now, the heart is just the reservoir of man, and our life is allowed to flow in its proper season. That life may flow through different pipes—the mouth, the hand, the eye; but still all the issues of hand, of eye, of lip, derive their source from the great fountain and central reservoir, the heart; and hence there is no difficulty in showing the great necessity that exists for keeping this reservoir, the heart, in a proper state and condition, since otherwise that which flows through the pipes must be touted and corrupt. May the Holy Spirit now direct our meditations.
Mere moralists very often forget the heart, and deal exclusively with the lesser powers. Some of them say, “If a man’s life be wrong, it is better to alter the principles upon which his conduct is modeled: we had better adopt another scheme of living; society must be re-modeled, so that man may have an opportunity for the display of virtues, and less temptation to indulge in vice.” It is as if, when the reservoir was filled with poisonous or polluted fluid, some sage counsellor should propose that all the piping had better be taken up, and fresh pipes laid down, so that the water might run through fresh channels; but who does not perceive that it would be all in vain, if the fountain-head were polluted, however good the channels. So in vain the rules by which men hope to fashion their lives; in vain the regimen by which we seek to constrain ourselves to the semblance of goodness, unless the heart be right, the very best scheme of life shall fall to the ground, and fail to effect its design. Others say, “Well, if the life be wrong, it would be better to set the understanding right: you must inform man’s judgment, educate him, teach him better, and when his head is well informed, then his life will be improved. Now, understanding is, if I may use such a figure, the stopcock which controls the emotions, lets them flow on, or stops them; and it is as if some very wise man, when a reservoir had been poisoned, proposed that there should be a new person employed to turn the water off or on, in hope that the whole difficulty would thus be obviated. If we followed his advice, if we found the wisest man in the world to have control of the fountain, Mr. Understanding would still be incapable of supplying us with healthy streams, until we had first of all purged the cistern whence they flowed. The Arminian divine, too, sometimes suggests another way of improving man’s life. He deals with the will. He says, the will must first of all be conquered, and if the will be right, then every thing will be in order. Now, will is like the great engine which forces the water out of the fountain-head along the pipes, so that it is made to flow into our dwellings. The learned counsellor proposes that there should be a new steam-engine employed to force the water along the pipes. “If,” says he, “we had the proper machinery for forcing the fluid, then all would be well.” No, sir, if the stream be poisonous, you may have axles to turn on diamonds, and you may have a machine that is made of gold, and a force as potent as Omnipotence, but even then you have not accomplished your purpose until you have cleansed the polluted fountain, and purged the issues of life which flow therefrom. The wise man in our text seems to say, “Beware of misapplying your energies, be careful to begin in the right place.” It is very necessary the understanding should be right; it is quite needful the will should have its proper predominance; it is very necessary that you should keep every part of man in a healthy condition; “but,” says he, “if you want to promote true holiness, you must begin with the heart, for out of it are the issues of life; and when you have purged it, when you have made its waters pure and limpid, then shall the current flow and bless the inhabitants with clear water; but not till then.” Here let us pause and ask the solemn and vital question, “Is my heart right in the sight of God?” For unless the inner man has been renewed by the grace of God, through the Holy Spirit, our heart is full of rottenness, filth, and abominations. And if so, here must all our cleansing begin, if it be real and satisfactory. Unrenewed men, I beseech you ponder the words of an ancient Christian which I here repeat in thine ear:—“It is no matter what is the sign, though an angel, that hangs without, if the devil and sin dwell therein. New trimmings upon an old garment will not make it new, only give it a new appearance; and truly it is no good husbandry to bestow a great deal of cost in mending up an old suit, that will soon drop to tatters and rags, when a little more might purchase a new one that is lasting. And is it not better to labor to get a new heart, that all thou dost may be accepted, and thou saved, than to lose all the pains thou takest in religion, and thyself also for want of it?”