4. Nor would we think, that upon our taking of this course for the pardon of our sins, we shall never thereafter meet with a challenge upon the account of these sins. It is true, when sins are pardoned, they are fully pardoned in God's court, and that obligation to condemnation is taken away, and the pardoned person is looked upon as no sinner, that is, as no person liable to condemnation because of these sins; for being pardoned he becometh just before God; yet we dare not say, but conscience afterward, being alarmed with new transgressions, may mistake, as people suddenly put into a fight are ready to do; nor dare we say, that God will not permit Satan to upbraid us with those sins, which have been blotted out long ago, as he suffered Shimei, who was but an instrument of Satan, to cast up to David his blood-guiltiness, which had been pardoned long before. The Lord may think good to suffer this, that his people may be kept humble, and made more tender and watchful in all their ways. 5. Believers would not misimprove or abuse this great condescendency of free grace, and take the great liberty to sin, because there is such a sure, safe, and pleasant way of getting those sins blotted out and forgiven. "Shall we sin because we are not under grace, but under the law? That be far from us," saith the Apostle, Rom. vi. 15. This were indeed to turn the grace of God into lasciviousness. And it may be a question, if such as have really repented, and gotten their sins pardoned, will be so ready to make this use of it; sure sense of pardon will work some other effect, as we see, Ezek. xvi. 62, 63. 6. The believer, in going about this work of nailing his sins to the cross of Christ, and of improving Christ's death, resurrection, and constant intercession, for the obtaining of pardon, would not think of going alone, or of doing this in his own strength; for of himself he can do nothing. He must look to Christ for grace to help in this time of need, and must go about this duty with dependence on him, waiting for the influence of light, counsel, strength, and grace from him, to repent and believe; for he is a prince exalted to give repentance, first and last, and he is the author and finisher of faith; so that without him we can do nothing.