The Deceitfulness of the Heart
Jeremiah 17:9
The heart is deceitful above all things, and desperately wicked: who can know it?


Unless we are affected, permanently and practically, with the corruption of our nature, all other points of Christian doctrine connected with it, supposing we even admit their truth, must be mere speculation, unaffecting in their influence, unprofitable in their results.

I. THE UNPARALLELED DECEITFULNESS, AND DESPERATE WICKEDNESS OF THE HEART. This appears from the following considerations: That it is able to evade the most pointed applications of Divine truth, to resist the most powerful convictions of the Divine Spirit, and to violate the most serious resolutions of the awakened conscience.

1. One might imagine that the unprofitableness and danger of living in a spirit and temper so much below the spirit and temper of real Christians would, when faithfully disclosed, have the effect of awakening solicitude in the minds of those persons whose everlasting condition is so deeply involved. But how often would these expectations be disappointed! Every person makes the application for his neighbour, saying, "Thou art the man"; and with great dexterity evades it himself.

2. When the devotional spirit, the heavenly temper, the holy conduct of the Christian are faithfully described; when his motives and principle, his affections, his objects, and his aims, are disclosed, it is natural to suppose that worldly men, by contrasting all this with their own spirit and temper and conduct, with their own motives and principles and affections, with their own objects and aims so directly the reverse, would be humbled and confounded. But how often are men satisfied with admiring the beauty of holiness, without imitating it; or with pronouncing holiness impracticable, without endeavouring to practise it!

3. In order to give power and efficacy to the Gospel, the Holy Spirit accompanies it to the heart and conscience, and causes men to see its vast importance, and to feel its mighty influence on the soul. Who can think of death, judgment, and eternity; of heaven and hell; of glory, honour, and immortality; and of the worm that dieth not, and the fire that is not quenched; in connection with his own sins; with redemption; with that newness of heart and newness of life which are taught as necessary to prepare him for the inheritance of the saints in light, without either believing that all these are idle speculations, or concluding that religion is no vain thing? Who has not had the conviction so natural, so true, and so awful, that if he is not prepared to come to the table of the Lord, he is not prepared to meet his God? Have you not the conviction that your life is inconsistent with the piety required of communicants? But how deceitful is the heart which is able to resist these convictions, and to allow you from time to time to go on in the same course of negligence, disobedience, and ingratitude!

4. How little the heart is to be trusted in the things that belong to our peace, is evident from the many resolutions to serve God, which almost every heart has violated, that has been influenced by the truth as it is in Jesus. When we are most determined against iniquity, most shocked with the idea of committing it, and most persuaded that we are stedfast, then we are most in danger. "Is thy servant a dog that he should do this thing?" is language which is seldom used without being followed by the commission of the very sin of which we thought ourselves utterly incapable.

II. THE NECESSITY OF BEING AWARE OF ITS DECEITFULNESS AND WICKEDNESS.

1. It is the most difficult knowledge. There are so many mixtures in the motives of the heart, so many windings, so much duplicity and insincerity, so much false profession and false appearance, that it is impossible thoroughly to comprehend it. Not only can no man trust the heart of another, but no man can trust his own.

2. It is the most disagreeable knowledge. Nothing is so mortifying to our pride. Hence, instead of searching for the deceitfulness and wickedness of our hearts, we feel a strong temptation to let it lie concealed, to shut our eyes against the light, and to avoid the disquietude arising from the discovery of what is so humbling.

3. It is the most desirable knowledge which we can obtain. It is the knowledge of our own deceitful and desperately wicked hearts that renders us careful of our own souls; that humbles us; that leads us to the Saviour; that makes Jesus Christ precious to us; that constrains us to seek the sanctifying influences of the Holy Spirit; that sends us to our Bible, to the throne of grace, and to the table of the Lord.

(M. Jackson.)



Parallel Verses
KJV: The heart is deceitful above all things, and desperately wicked: who can know it?

WEB: The heart is deceitful above all things, and it is exceedingly corrupt: who can know it?




The Deceitfulness of the Heart
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