3. In the third place, To confess that there is nothing in him, done or can be done by him, that should allure, or prevail with God to do any thing for him: for a sinner cannot do good; no, not work up his heart unto one good thought: no, though he should have heaven itself if he could, or was sure to burn in hell-fire for ever and ever if he could not. For sin, where it is in possession, and bears rule, as it doth in every one that we may properly call a sinner, there it hath the mastery of the man, hath bound up his senses in cords and chains, and made nothing so odious to the soul as the things that are of the Spirit of God. Wherefore it is said of such, that they are “Enemies in their minds;” that “The carnal mind is enmity against God,” and that “Wickedness proceedeth of the wicked;” and that the Ethiopian may as well change his skin, or the leopard his spots, as they that are accustomed to do evil may learn to do well; Col. i.; Rom. viii.; 1 Sam. xxiv. 13; Jer. xiii. 23. 4. In this confession he implicitly acknowledgeth that sin is the worst of things, forasmuch as it layeth the soul out of the reach of all remedy that can be found under heaven. Nothing below or short of the mercy of God can deliver a poor soul from this fearful malady. This the Pharisee did not see. Doubtless he did conclude, that at some time or other he had sinned; but he never in all his life did arrive to a sight of what sin was: his knowledge of it was but false and counterfeit, as is manifest by his cure; to wit, his own righteousness. For take this for a truth undeniable, that he that thinks himself better before God, because of his reformations, never yet had the true knowledge of his sin: But the poor Publican he had it, he had it in truth, as is manifest, because it drives him to the only sovereign remedy. For indeed, the right knowledge of sin, in the filth, and guilt, and damning power thereof, makes a man to understand, that not any thing but grace and mercy by Christ can secure him from the hellish ruins thereof. Suppose a man sick of an apoplexy unto death, and should for his remedy make use only of those things that are good against the second ague, would not this demonstrate that this man was not sensible of the nature and danger of this disease? The same may be said of every sinner that shall make use only of those means to justify him before God, that can hardly make him go for a good Christian before judicious men. But the poor Publican, he knew the nature and the danger of his disease; and knew also, that nothing but mercy, infinite mercy, could cure him thereof.