Objection. It may be said, If we should be justified for the sake of our inherent righteousness, since that righteousness is the gift of God, will it not follow that boasting is in the occasion thereof, cut off.
Ans. No, for although the principle of inherent righteousness be the gift of God, yet it bringeth forth fruits by man, and through man, and so man having a hand therein, though he should have never so little, he has an occasion offered him to boast. Yea, if a man should be justified before God by the grace, or the working of the grace of faith in him, he would have ground of occasion to boast, because faith, though it be the gift of God, yet as it acteth in man, takes man along with it in its so acting; yea, the acting of faith is as often attributed to the man by whom it is acted, and oftener, than to the grace itself. How then can it be, but that man must have a hand therein, and so a ground therein, or thereof to boast.
But now! since justification from the curse of the law before God, lieth only and wholly in God's imputing of Christ's righteousness to a man, and that too, while the man to whom it is imputed, is in himself wicked and ungodly, there is no room left for boasting before God, for that is the boasting intended; but rather an occasion given to shame and confusion of face, and to stop the mouth for ever, since justification comes to him in a way so far above him, so vastly without him, his skill, help, or what else soever. (Eze 16:61-63)
6. Righteousness by imputation must be first, that justification may not be of debt, but of mercy and grace. This is evident from reason: It is meet that God should therefore justify us by a righteousness of his own, not of his own prescribing, for that he may do, and yet the righteousness be ours; but of his own providing, that the righteousness may be his. "Now to him that worketh, is the reward not reckoned of grace, but of debt." (Rom 4:4) If I work for justifying righteousness, and that way get righteousness, my justification is not of grace but of debt, God giveth it not unto me, for he oweth it unto me; so then it is no longer his but mine: Mine not of grace, but debt: And if so then, I thank him not for remission of sins, nor for the kingdom of heaven, nor for eternal life; for if justifying righteousness is of debt, then when I have it, and what dependeth thereon, I have but mine own, that which God oweth to me.
Nor will it help at all to say, but I obtain it by God's grace in me, because that doth not cut off my work, nor prevent my having of an hand in my justifying righteousness.
Suppose I give a man materials, even all materials that are necessary to the completing of such or such a thing; yet if he worketh, though the materials be mine, I am to him a debtor, and he deserveth a reward. Thou sayest, God has given thee his Spirit, his grace, and all other things that are necessary for the working up of a complete righteousness. Well, but is thy work required to the finishing of this righteousness? If so, this is not the righteousness that justifieth, because it is such as has thy hand, thy workmanship therein, and so obtains a reward. And observe it, righteousness, justifying righteousness, consisteth not in a principle of righteousness, but in works of righteousness; that is, in good duties, in obedience, in a walking in the law to the pleasing of the law, and the content of the justice of God.
I suppose again, that thou shalt conclude with me, that justifying righteousness, I mean that which justifies from the curse of the law, resideth only in the obedience of the Son of God; and that the principle of grace that is in thee, is none of that righteousness, no, not then when thou hast to the utmost walked with God according to thy gift and grace: Yet if thou concludest that this principle must be in thee, and these works done by thee, before this justifying righteousness is imputed to thee for justification, thou layest in a caveat against justification by grace; and also concludest, that though thou art not justified by thy righteousness, but by Christ, yet thou art justified by Christ's righteousness, for the sake of thine own, and so makest justification to be still a debt. But here the scripture doth also cut thee off: "Not for thy righteousness, or for the uprightness of thine heart dost thou go to possess their land"; which was but a type of heaven, and if our righteousness cannot give us by its excellency a share in the type, be sure, that for it, we shall never be sharers in the antitype itself. "Understand therefore, that the Lord thy God giveth thee not this good land to possess it, for thy righteousness; for thou art a stiff-necked people." (Deu 9:5,6)
Gospel-performances therefore are not first; that was first, for the sake of which, God did receive these people into favour with himself, and that was a covenant righteousness; and where could that covenant righteousness be found but in the prince, mediator, and high priest of the covenant? For it was HE and HE only that was appointed of God, nor could any but himself, bring in everlasting righteousness. (Dan 9:24,25) This is evident from these texts last mentioned; it was not for their righteousness, that they possessed the land.
Again, As it was not for their righteousness, that they were made possessors of the land, so it was not for the sake of their righteousness, that they were made partakers of such a righteousness that did make them possess the land. This is plain to reason; for then inherent or inherent and personal righteousness, when by us performed, is of worth to obtain of God a justifying righteousness. But if it be of worth to obtain a justifying righteousness, then it seems, it is more commodious to both parties than is justifying righteousness. First, it is more commodious to him that worketh it, for by it he obtaineth everlasting righteousness; and secondly, it is more commodious unto him that receiveth it, else why doth he for it give us a due debt, and so put upon us the everlasting justifying righteousness.
Perhaps it will be objected, that God doth all this of grace; but I answer, that these are but fallacious words, spake by the tongue of the crafty. For we are not now discoursing of what rewards God can give to the operations of his own grace in us, but whether he can in a way of justice, or how he will, bestow any spiritual blessings upon sinful creatures, against whom, for sin, he has pronounced the curse of the law, before he hath found them in a righteousness, that is proved to be as good justice and righteousness, as is the justice and righteousness of the law, with which we have to do.