Chapter V.
The third inquiry handled, namely, What is the assurance given us, and what are the grounds thereof, that sin shall not have dominion over us — The ground of this assurance is, that we are “not under the law, but under grace” — The force of this reason shown, namely, How the law doth not destroy the dominion of sin, and how grace dethrones sin and gives dominion over it.
III. And thus much hath been spoken unto the second thing proposed at the entrance of this discourse, — namely, an inquiry, Whether sin have the dominion in any of us or no. I proceed unto that which offers itself from the words, in the third place: What is the assurance given us, and what are the grounds of it, that sin shall not have dominion over us; which lies in this, that we are “not under the law, but under grace.”
Where men are engaged in a constant conflict against sin; where they look upon it and judge it their chiefest enemy, which contends with them for their souls and their eternal ruin; where they have experience of its power and deceit, and through the efficacy of them have been often shaken in their peace and comfort; where they have been ready to despond, and say they shall one day perish under their powers, — it is a gospel word, a word of good tidings, that gives them assurance that it shall never have dominion over them.
The ground of this assurance is, that believers are “not under the law, but under grace.” And the force of this reason we may manifest in some few instances:—
First, The law giveth no strength against sin unto them that are under it, but grace doth. Sin will neither be cast nor kept out of its throne, but by a spiritual power and strength in the soul to oppose, conquer, and dethrone it. Where it is not conquered it will reign; and conquered it will not be without a mighty prevailing power: this the law will not, cannot give.
The law is taken two ways:— 1. For the whole revelation of the mind and will of God in the Old Testament. In this sense it had grace in it, and so did give both life, and light, and strength against sin, as the psalmist declares, Ps. xix. 7–9. In this sense it contained not only the law of precepts, but the promise also and the covenant, which was the means of conveying spiritual life and strength unto the church. In this sense it is not here spoken of, nor is anywhere opposed unto grace. 2. For the covenant rule of perfect obedience: “Do this, and live.” In this sense men are said to be “under it,” in opposition unto being “under grace.” They are under its power, rule, conditions, and authority, as a covenant. And in this sense all men are under it who are not instated in the new covenant through faith in Christ Jesus, who sets up in them and over them the rule of grace; for all men must be one way or other under the rule of God, and he rules only by the law or by grace, and none can be under both at the same time.
In this sense the law was never ordained of God to convey grace or spiritual strength unto the souls of men; had it been so, the promise and the gospel had been needless: “If there had been a law given which could have given life, verily righteousness should have been by the law,” Gal. iii. 21. If it could have given life or strength, it would have produced righteousness, we should have been justified by it. It discovers sin and condemns it, but gives no strength to oppose it. It is not God’s ordinance for the dethroning of sin, nor for the destruction of its dominion.
This law falls under a double consideration, but in neither of them was designed to give power or strength against sin:—
1. As it was given unto mankind in the state of innocency; and it did then absolutely and exactly declare the whole duty of man, whatever God in his wisdom and holiness did require of us. It was God’s ruling of man according to the principle of the righteousness wherein he was created. But it gave no new aids against sin; nor was there any need that so it should do. It was not the ordinance of God to administer new or more grace unto man, but to rule and govern him according to what he had received; and this it continueth to do forever. It claims and continues a rule over all men, according to what they had and what they have; but it never had power to bar the entrance of sin, nor to cast it out when it is once enthroned.
2. As it was renewed and enjoined unto the church of Israel on Mount Sinai, and with them unto all that would join themselves unto the Lord out of the nations of the world. Yet neither was it then, nor as such, designed unto any such end as to destroy or dethrone sin by an administration of spiritual strength and grace. It had some new ends given then unto it, which it had not in its original constitution, the principal whereof was to drive men to the promise, and Christ therein; and this it doth by all the acts and powers of it on the souls of men. As it discovers sin, as it irritates and provokes it by its severity, as it judgeth and condemneth it, as it denounceth a curse on sinners, it drives unto this end; for this was added of grace in the renovation of it, this new end was given unto it. In itself it hath nothing to do with sinners, but to judge, curse, and condemn them.