The first sense of the text upon which I would say just a word or two is this: The prophet is expostulating with ungodly men upon their pursuit of happiness where it never can be found. They were endeavoring to grow rich and great and strong by oppression. The prophet says, "Ye have turned judgment into gall, and the fruit of righteousness into hemlock." Justice was bought and sold among them, and the book of the law was made the instrument of fraud. "Yet," says the prophet, "there is no gain to be gotten in this way—no real profit, no true happiness. As well may horses run upon a rock, and oxen plough the sand; it is labor in vain."

If any of you try to content yourselves with this world, any hope to find a heaven in the midst of your business and your family without looking upward for it, you labor in vain. If you hope to find pleasure in sin, and think that it will go well with you if you despise the law of God, you will make a great mistake. You might as well seek for roses in the grottoes of the sea, or look for pearls on the pavements of the city. You will find what your soul requires nowhere but in God. To seek after happiness in evil deeds is to plough a rock of granite. To labor after true prosperity by dishonest means is as useless as to till the sandy shore. "Wherefore do you spend your money for that which is not bread, and your labor for that which satisfieth not?" Young man, you are killing yourself with ambition; you seek your own honor and emolument, and this is a poor, poor object for an immortal soul. And you, too, sir, are wearing out your life with care; your mind and body both fail you in endeavoring to amass riches, as if a man's life consisted in the abundance of the things which he possesses; you are ploughing a rock; your cares will not bring you joy of heart or content of spirit; your toil will end in failure. And you, too, who labor to weave a righteousness by your works apart from Christ and fancy that with the diligent use of outward ceremonies you may be able to do the work of the Holy Spirit upon your own heart, you, too, are ploughing thankless rock. The strength of fallen nature exerted at its utmost can never save a soul. Why, then, plough the rock any longer? Give over the foolish task.

So far, I believe, we have not misread the text, but have mentioned a very probable meaning of the words; still another strikes me, which I think equally suitable, and upon it I shall dwell, by God's help.

It is this. God will not always send his ministers to call men to repentance. When men's hearts remain obdurate, and they do not and will not repent, then God will not always deal with them in mercy. "My Spirit shall not always strive with man." There is a time of ploughing, but when it is evident that the heart is wilfully hardened, then wisdom itself suggests to mercy that she should give over her efforts. "Shall horses run upon the rock? will one plough there with oxen?" No, there is a limit to the efforts of kindness, and in fulness of time the labor ceases, and the rock remains unploughed henceforth and for ever.

I. Taking that sense, we shall speak upon it, and remark, first, that ministers labor to break up men's hearts; the wise preacher tries by the power of the Holy Ghost to break up the hard clods of the heart, so that it may receive the heavenly seed.

Many truths are used like sharp ploughshares to break up the heart. Men must be made to feel that they have sinned, and they must be led to repent of sin. They must receive Christ, not with the head only, but with the heart; for with the heart man believeth unto righteousness. There must be emotion; we must cut into the heart with the ploughshare of the law. A farmer who is too tender-hearted to tear and harrow the land will never see a harvest. Here is the failing of certain divines, they are afraid of hurting any one's feelings, and so they keep clear of all the truths which are likely to excite fear or grief. They have not a sharp ploughshare on their premises, and are never likely to have a stack in their rickyard. They angle without hooks for fear of hurting the fish, and fire without bullets out of respect to the feelings of the birds. This kind of love is real cruelty to men's souls. It is much the same as if a surgeon should permit a patient to die because he would not pain him with the lancet, or by the necessary removal of a limb. It is a terrible tenderness which leaves men to sink into hell rather than distress their minds. It is pleasant to prophesy smooth things, but woe unto the man who thus degrades himself. Is this the spirit of Christ? Did he conceal the sinner's peril? Did he cast doubt upon the unquenchable fire and the undying worm? Did he lull souls into slumber by smooth strains of flattery? Nay, but with honest love and anxious concern he warned men of the wrath to come, and bade them repent or perish. Let the servant of the Lord Jesus in this thing follow his Master, and plough deep with a sharp ploughshare, which will not be balked by the hardest clods. This we must school ourselves to do. If we really love the souls of men, let us prove it by honest speech. The hard heart must be broken, or it will still refuse the Saviour who was sent to bind up the broken-hearted. There are some things which men may or may not have, and yet may be saved; but those things which go with the ploughing of the heart are indispensable; there must be a holy fear and a humble trembling before God; there must be an acknowledgment of guilt and a penitent petition for mercy; there must, in a word, be a thorough ploughing of the soul before we can expect the seed to bring forth fruit.

II. But the text indicates to us that at times ministers labor in vain. "Shall horses run upon the rock? will one plough there with oxen?" In a short time a ploughman feels whether the plough will go or not, and so does the minister. He may use the very same words in one place which he has used in another, but he feels in the one place great joy and hopefulness in preaching, while with another audience he has heavy work, and little hope. The plough in the last case seems to jump out of the furrow; and a bit of the share is broken off now and then. He says to himself, "I do not know how it is, but I do not get on at this," and he finds that his Master has sent him to work upon a particularly heavy soil. All laborers for Christ know that this is occasionally the case. You must have found it so in a Sunday-school class, or in a cottage meeting, or in any other gathering where you have tried to teach and preach Jesus. You have said to yourself every now and then, "Now I am ploughing a rock. Before, I turned up rich mould which a yoke of oxen might plough with ease, and a horse might even run at the work; but now the horse may tug, and the oxen may wearily toil till they gall their shoulders, but they cannot cut a furrow; the rock is stubborn to the last degree."

There are such hearers in all congregations. They are as iron, and yet they are side by side with a fine plot of ground. Their sister, their brother, their son, their daughter, all these have readily felt the power of the gospel; but they do not feel it. They hear it respectfully; and they so far allow it free course that they permit it to go in at one ear and out at the other, but they will have nothing more to do with it. They would not like to be Sabbath-breakers and stop away from worship; they therefore do the gospel the questionable compliment of coming where it is preached and then refusing to regard it. They are hard, hard, hard bits of rock, the plough does not touch them.

Many, on the other hand, are equally hard; but it is in another way. The impression made by the word is not deep or permanent. They receive it with joy, but they do not retain it. They listen with attention, but it never comes to practice with them. They hear about repentance, but they never repent. They hear about faith, but they never believe. They are good judges of what the gospel is, and yet they have never accepted it for themselves. They will not eat; but still they insist that good bread shall be put on the table. They are great sticklers for the very things which they personally reject. They are moved to feeling; they shed tears occasionally; but still their hearts are not really broken up by the word. They go their way, and forget what manner of men they are. They are rocky-hearted through and through; all our attempts to plough them are failures.

Now this is all the worse, because certain of these rocky-hearted people have been ploughed for years, and have become harder instead of softer. Once or twice ploughing, and a broken share or two, and a disappointed ploughman or two, we might not mind, if they would yield at last; but these have since their childhood known the gospel and never given way before its power. It is a good while since their childhood now with some of them. Their hair is turning gray, and they themselves are getting feeble with years. They have been entreated and persuaded times beyond number, but labor has been lost upon them. In fact, they used to feel the word, in a certain fashion, far more years ago than they do now. The sun, which softens wax, hardens clay, and the same gospel which has brought others to tenderness and repentance has exercised a contrary effect upon them, and made them more careless about divine things than they were in their youth. This is a mournful state of things, is it not?