The Deceitfulness of the Heart as to Duty
Psalm 78:56-57
Yet they tempted and provoked the most high God, and kept not his testimonies:…


I. AS TO THE PERFORMANCE OF DUTY, the heart discovers its power of deceit.

1. By diverting a person from those duties that are most spiritual in their nature. It will plead. as to self-examination and meditation on the Word, that these duties are of too difficult a nature; that they require too close an attention; that it is very provoking to God to perform them carelessly; and therefore insist for the neglect of them, and for giving a preference to those of a more general nature.

2. By endeavouring to prevent any real communion with God, and to distract the mind by wandering in duty.

3. By inciting to hypocrisy. The people of God are sometimes disposed to appear to Him more fervent in duty than they really are, to make professions of love to Him which they do not presently feel, to express a hatred of sin and desire of His favour, without the immediate sense of either in their hearts.

4. By prompting the possessor to retain sin in his heart, even when he draws near to God.

5. By exciting a person to rely on his own strength.

6. By pleading uprightness of intention as an apology for a multitude of defects.

7. There are many, on the other hand, who please themselves with the form of duty, without any regard to the intention.

8. By stirring up the believer to spiritual pride after enjoying the Divine presence in duty.

9. By dissuading the Christian from duty, when the observation of it is attended with no comfort.

10. By making the person seek comfort from the mere performance of duty.

11. By inspiring one with greater boldness in duty, because of former comfort in the observation of it.

II. WITH RESPECT TO OMISSION.

1. The heart urges the delay of duty, and thus discovers its deceitfulness, by promising a future opportunity.

2. It persuades us to omit duty by calling in the world to its aid. This is a faithful ally to the corrupt heart, always willing to lend its aid in turning us away from God.

3. It presents evil in opposition to present duty. When God presents an opportunity of serving Him, to which the renewed will consents, the deceitfulness of the heart offers a temptation to evil; and by the artfulness or force of the temptation endeavours to divert the believer from the good that he designs.

4. It dissuades from duty, because of insufficiency for performing it aright. The deceitful heart will often contradict itself, rather than fail of its intention, to baffle all the attempts of the believer in the service of his God. If engaged in duty, it persuades him to depend on his own strength. If he be convinced of the folly of this proposal, it will try to hinder him from duty, because of felt inability.

5. It prompts the Christian to resist the present call to duty, for want of a proper temper. By this is meant a right disposition of heart, liveliness of affections, a present feeling of the comforts of religion. A comfortable warmth of affections is most desirable, indeed, in the service of the Lord. But it is not essential to acceptable worship. A duty may be performed in the exercise of faith, while no sensible comfort is attained. But wilfully to omit any one for want of this is to renounce the true foundation of our access to God, which is only through Christ.

6. It dissuades from duty, by representing that an eminent measure of holiness is not necessary to salvation.

7. It inclines to the neglect of duty, lest others should construe it as presumption or hypocrisy. This is a modesty, for which God may be provoked so to chasten His people as to give them just cause of shame, and to cover their faces with deserved confusion.We shall conclude with the following directions: —

1. Beware of neglecting the season of duty. God's time is always the fittest for His own service.

2. Do not plead the world as an excuse for the omission of duty. God hath given you abundance of time to yourselves. "To everything there is a season," etc. You may easily accomplish all your worldly business, and yet devote that time to God which He requires.

3. Be extremely suspicious of every excuse that your heart offers for the neglect of duty.

4. Quench not the Spirit, when exciting you to duty. This is grieving to the Holy Ghost, by whom you are sealed to the day of redemption.

5. Carry on, in the strength of promised grace, a constant war against the carnality of your hearts, against that opposition which is in them to duty.

(J. Jamieson, M. A.)



Parallel Verses
KJV: Yet they tempted and provoked the most high God, and kept not his testimonies:

WEB: Yet they tempted and rebelled against the Most High God, and didn't keep his testimonies;




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