Did you ever feel and experience this, any of you—to justify God in your damnation—to own that you are by nature children of wrath, and that God may justly cut you off, tho you never actually had offended Him in all your life? If you were ever truly convicted, if your hearts were ever truly cut, if self were truly taken out of you, you would be made to see and feel this. And if you have never felt the weight of original sin, do not call yourselves Christians. I am verily persuaded original sin is the greatest burden of a true convert; this ever grieves the regenerate soul, the sanctified soul. The indwelling of sin in the heart is the burden of a converted person; it is the burden of a true Christian. He continually cries out: "Oh! who will deliver me from this body of death, this indwelling corruption in my heart?" This is that which disturbs a poor soul most. And, therefore, if you never felt this inward corruption, if you never saw that God might justly curse you for it, indeed, my dear friends, you may speak peace to your hearts, but I fear, nay, I know, there is no true peace.
Further, before you can speak peace to your hearts you must not only be troubled for the sins of your life, the sins of your nature, but likewise for the sins of your best duties and performances.
When a poor soul is somewhat awakened by the terrors of the Lord, then the poor creature, being born under the covenant of works, flies directly to a covenant of works again. And as Adam and Eve hid themselves among the trees of the garden and sewed fig-leaves together to cover their nakedness, so the poor sinner when awakened flies to his duties and to his performances, to hide himself from God, and goes to patch up a righteousness of his own. Says he, I will be mighty good now—I will reform—I will do all I can; and then certainly Jesus Christ will have mercy on me. But before you can speak peace to your heart you must be brought to see that God may damn you for the best prayer you ever put up; you must be brought to see that all your duties—all your righteousness—as the prophet elegantly expresses it—put them all together, are so far from recommending you to God, are so far from being any motive and inducement to God to have mercy on your poor soul, that He will see them to be filthy rags, a menstruous cloth—that God hates them, and can not away with them, if you bring them to Him in order to recommend you to His favor.
My dear friends, what is there in our performance to recommend us unto God? Our persons are in an unjustified state by nature; we deserve to be damned ten thousand times over; and what must our performance be? We can do no good thing by nature: "They that are in the flesh can not please God."
You may do things materially good, but you can not do a thing formally and rightly good; because nature can not act above itself. It is impossible that a man who is unconverted can act for the glory of God; he can not do anything in faith, and "whatsoever is not of faith is sin."
After we are renewed, yet we are renewed but in part, indwelling sin continues in us, there is a mixture of corruption in every one of our duties, so that after we are converted, were Jesus Christ only to accept us according to our works, our works would damn us, for we can not put up a prayer but it is far from that perfection which the moral law requireth. I do not know what you may think, but I can say that I can not pray but I sin—I can not preach to you or any others but I sin—I can do nothing without sin; and, as one expresseth it, my repentance wants to be repented of, and my tears to be washed in the precious blood of my dear Redeemer.
Our best duties are so many splendid sins. Before you can speak peace to your heart you must not only be sick of your original and actual sin, but you must be made sick of your righteousness, of all your duties and performances. There must be a deep conviction before you can be brought out of your self-righteousness; it is the last idol taken out of our heart. The pride of our heart will not let us submit to the righteousness of Jesus Christ. But if you never felt that you had no righteousness of your own, if you never felt the deficiency of your own righteousness, you can not come to Jesus Christ.
There are a great many now who may say, Well, we believe all this; but there is a great difference betwixt talking and feeling. Did you ever feel the want of a dear Redeemer? Did you ever feel the want of Jesus Christ, upon the account of the deficiency of your own righteousness? And can you now say from your heart Lord, thou mayest justly damn me for the best duties that ever I did perform? If you are not thus brought out of self, you may speak peace to yourselves, but yet there is no peace.
But then, before you can speak peace to your souls, there is one particular sin you must be greatly troubled for, and yet I fear there are few of you think what it is; it is the reigning, the damning sin of the Christian world, and yet the Christian world seldom or never think of it. And pray what is that?
It is what most of you think you are not guilty of—and that is, the sin of unbelief. Before you can speak peace to your heart, you must be troubled for the unbelief of your heart But can it be supposed that any of you are unbelievers here in this churchyard, that are born in Scotland, in a reformed country, that go to church every Sabbath? Can any of you that receive the sacrament once a year—oh, that it were administered oftener!—can it be supposed that you who had tokens for the sacrament, that you who keep up family prayer, that any of you do not believe in the Lord Jesus Christ?