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I. Before treating of a change of heart, it is very natural and proper that inquiry should be made WHETHER THE HEART AND AFFECTIONS OF MEN ARE SO WRONG, AND IN SUCH DISORDER, AS TO BE SUSCEPTIBLE OF BEING AMENDED. For if the point were established, that the motives of the heart were as pure as possible, and the internal, real, moral character of men absolutely faultless, there would evidently be no room for improvement; and all further inquiry into the reality of a change of heart would be precluded.

II. Our next inquiry is, supposing this most desirable change to be amply provided for, under the blessed government of God, WHETHER IT MAY BE EXPECTED TO BE INSTANTANEOUS AND ENTIRE. Reason and analogy, then, are decidedly against such an expectation. So far as we know, all ameliorating processes are, of necessity, gradual and slow. And there is nothing in Scripture or in experience to show that the moral benefits of Christianity, either in the case of nations or individuals, are dispensed by any other law. In looking for a changed man, then, we must not be looking for a faultless and perfect man; and in seeking for evidence that there is a reality in the moral change sometimes wrought by the influence of the Bible, we are not to look for a change which leaves no room for further amendment.

III. What then? it may be asked — IS THIS CHANGE SUPERFICIAL, APPARENT, EXTERNAL ONLY? A change from being notoriously vicious and bad, to being outwardly strict and exemplary; from living in the indulgence of personal and social vices, to a most pure and blameless moral deportment? This question is easily answered by another: does a change of outward deportment necessarily involve a change of the inward feelings and motives of the heart?

IV. This brings us to a nearer inspection of the real nature of a change of heart. And, to make the point more abundantly clear and convincing, SOME OF THE DISORDERS OF OUR MORAL NATURES WILL BE RECOUNTED, both as it regards ourselves, our fellow creatures, and our moral Governor, and then the inquiry will be, whether the Gospel of our Lord Jesus Christ contains the moral power of correcting these disorders; or, in other words, of changing our hearts in these several respects.

1. I am persuaded that it is but too apparent to every one of you, that your impatience, irritability, pride, and passion miserably impair and prevent your own happiness. In other words, that every man is his own worst enemy — far the worst.

2. Are the inward feelings of our hearts towards our neighbours any better or more under control, than those which have respect to our own immediate personal happiness? Are there, amongst us, no unholy strifes and emulations; no envious or slanderous thoughts; no coverings and hatreds; no feelings of malice or revenge?

3. But the true secret of all the other faults and disorders of our moral natures evidently lies in our not having right feelings toward God, our most holy and rightful moral Governor. Here, therefore, it is that the inconceivable force of the Bible motives is brought to bear. This is the mountainous difficulty which Jesus Christ came to remedy and remove. Here it is that God places His healing touch; or rather, manifests His new creating power. The heart has new and right feelings implanted in it towards God, and towards His Son Jesus Christ, through faith in His name, and by the power of the Holy Ghost.

V. The only point which remains to be discussed is, WHETHER THERE IS REMARKABLE FITNESS IN BIBLE CONSIDERATIONS TO PRODUCE THESE GREAT AND MOST DESIRABLE CHANGES. That there is might have been inferred from the benevolent design of the Gospel, and from considering who is its Author; it being self-evident that our Moral Governor would not have provided a religion for a race of beings alienated from Him, without infusing into it a power to restore them to His service and His favour. And the same result comes to us abundantly attested by observation: exceedingly bad men have been made radically better by the Gospel, but never by any other religion; never by any other moral influence.

(H. B. Smith, D. D.)

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KJV: And I will give them one heart, and I will put a new spirit within you; and I will take the stony heart out of their flesh, and will give them an heart of flesh:

WEB: I will give them one heart, and I will put a new spirit within you; and I will take the stony heart out of their flesh, and will give them a heart of flesh;