III. What is the foundation of our justification; and that must be either some righteousness wrought out by us; or for us. Since justification is a person’s being _made righteous_, as the apostle styles it, Rom. v. 29. we must consider what we are to understand hereby; and accordingly a person is said to be righteous who never violated the law of God, nor exposed himself to the condemning sentence thereof: in this respect man, while in a state of innocency, was righteous; his perfect obedience was the righteousness which, according to the tenor of the covenant he was under, gave him a right to eternal life; especially it would have done so, had it been persisted in, till he was possessed of that life; but such a righteousness as this, cannot be the foundation of our justification, as the apostle says, _By the works of the law shall no flesh be justified_, Gal. ii. 16. Therefore, the righteousness we are now speaking of, must be something wrought out for us, by one who stood in our room and stead, and was able to pay that debt of obedience, and endure those sufferings that were due for sin, which the law of God might have exacted of us, and insisted on the payment of, in our own persons, which, when paid by Christ for us, is that, (as will be considered under a following head,) which we generally call Christ’s righteousness, or what he did and suffered in our stead, in conformity to the law of God; whereby its honour was secured and vindicated, and justice satisfied; so that God hereby appears to be, as the apostle says, _Just, and the justifier of him which believeth in Jesus_, Rom. iii. 26.[30] IV. We are now to consider the utter inability of fallen man to perform any righteousness that can be the matter of his justification in the sight of God; whereby it will appear, as it is observed in this answer, that we are not accounted righteous in his sight, for any thing wrought in us, or done by us. That we cannot be justified by suffering the punishment that was due for sin, appears from the infinite evil thereof; and the eternal duration of the punishment that it deserves; as our Saviour observes in the parable concerning the debtor, who did not _agree with his adversary while in the way_, but was _delivered to the officer_, and _cast into prison_; from whence he was not to come out _till he had paid the uttermost farthing_, Matt. v. 25, 26. that is to say, he shall never be discharged. A criminal who is sentenced to endure some punishments short of death, or which are to continue but for a term of years, when he has suffered them, is, upon the account hereof, discharged, or justified: but it is far otherwise with man, when fallen into the hands of the vindictive justice of God; therefore the Psalmist says, _enter not into judgment with thy servant_, or do not punish me according to the demerit of sin; _for in thy sight shall no flesh living be justified_.