Romans 8:2

For the law of the Spirit of life in Christ Jesus
These words are of difficult interpretation. They may be understood of the Gospel revealing and declaring deliverance from the law of Moses; wherefore there can be "no condemnation", ( Romans 8:1 ) , by it. The Gospel may be designed by "the law of the Spirit of life in Christ Jesus"; which may be called a law, not as succeeding the law of works, by which that is abrogated; nor as requiring conditions to be performed, or as enjoining duties to be observed, or as delivering out threatenings in case of disobedience; but as it is a doctrine, order, and chain of truths, as the Hebrew word (hrwt) signifies, and which is sometimes used for the Gospel, ( Isaiah 2:3 ) ( 42:4 ) as (nomov) is, ( Romans 3:27 ) . It may be called the law, or doctrine "of the Spirit", because the Spirit is the author of it, and makes it powerful and effectual to the good of souls; by it the Spirit of God is conveyed into the heart; and the substance of it are spiritual things: and the "law of the Spirit of life", because it discovers the way of life and salvation by Christ; is the means of quickening dead sinners; of working faith in them, by which they live on Christ, and of reviving drooping saints; and also it affords spiritual food, for the support of life: and this may be said to be "in Christ", or by him, inasmuch as it comes from, and is concerning him; he is the sum, the substance, and subject matter of it:

the law of sin and death
may intend the law of Moses, called "the law of sin"; not as if it was sinful, or commanded or encouraged sin, for it severely prohibits it; but because by it, through the corruption of man's nature, sin is irritated, and made to abound; it is the strength of sin, and by it is the knowledge of it: and it may be called "the law of death", because it threatened with death, in case of disobedience; it sentences and adjudges transgressors to death; and when it is attended with power, it strikes dead all a man's hopes of life, by obedience to it; it leaves persons dead as it finds them, and gives no life, nor hopes of it; by it none can live, or be justified: now, though Christ is the author of deliverance from it, yet the Gospel is the means of revealing and declaring this deliverance; which designs not an exemption from obedience to it, but freedom from the curse and condemnation of it; and this sense well agrees with ( Romans 8:1 ) ; likewise the words are capable of being understood of the power and efficacy of the Spirit of God, in delivering regenerate persons from the dominion and tyranny of sin; and which may be considered as a reason why they "walk not after the flesh, but after the Spirit", ( Romans 8:1 ) : "life" may well be ascribed to the Spirit of God, or be called the Spirit of life, because he has life in himself as the Father and Son have; and is the author of life to others, of natural life to all men as creatures, and of spiritual life to the people of God in regeneration; and is a quickening spirit to them afterwards, as he will be to the dead bodies of the saints in the resurrection: by "the law" of the Spirit may be meant, the energy and power of the Spirit in conversion; which work requires power, and a man has no power of himself to effect it; but there is a power in the Spirit, which works irresistibly, though not by any force or compulsion to the will, but it moves upon it sweetly, powerfully, and effectually: and all this may be said to be "in Christ": the life which the Spirit is the author and giver of, is in Christ as the head of his people, the proper repository of all grace, and the fountain of life; the Spirit himself is in him, both as God and as man, and as Mediator, hence the saints receive him and his gifts and graces from him; and the law of the Spirit, or his power and efficacy in working, is "in" or "by" Christ, through his sufferings and death, and in consequence of his mediation: now this powerful and quickening efficacy of the Spirit delivers regenerate persons from the force and tyranny of sin, called here "the law of sin and death"; a "law of sin", because it has power and dominion over unregenerate persons, its throne is in the heart of man, and its laws are many and powerful; and "the law of death", because its reign is tyrannical, barbarous and cruel, it is unto death: and from its governing influence, and tyrannical power, does the Spirit of God free his people in regeneration; not from the being of sin; nor from the rage of it, and disturbance it gives; nor from such power of it, but that they may fall into sin; but so as that sin does not properly reign over them, nor legally, nor universally, or so as to bring a death on their graces, and their persons into condemnation. Once more, those words may be understood of the holiness of Christ's human nature, as a branch of our justification, and freedom from the guilt of sin, and condemnation by it: for as "the law of sin and death" may design inherent corruption, and the force and power of it in the saints; so the opposite to it, "the law of the Spirit of life in Christ", may mean the purity and holiness of his human nature. That Christ's human nature is pure and holy is certain, from express texts of Scripture, from its union to the Son of God, from the ends and purposes of its assumption, from the inefficacy of Satan's temptations, and from the whole course of his life and conversation; for though he was in the likeness of sinful flesh, was reckoned a sinner by men, was attended with infirmities, the effects of sin, though not sinful, had all the sins of his people imputed to him, and endured afflictions, and at last death; yet his nature was pure and untainted: for he did not descend from Adam by ordinary generation; and though made of a woman, yet the flesh he took of her was sanctified by the Holy Ghost; his body was prepared by God, and curiously wrought by the Spirit, from whom his whole human nature received a fulness of habitual holiness: and this may be called "the Spirit of life" in him, because he is a quickening Spirit in regeneration, justification, and the resurrection from the dead; "the law" of it, because the holiness of his nature lies in, arises from, and is conformable to a law that is within him, written on his heart; and because, together with his obedience and death, it has a force, power, and authority, to free from condemnation; for this is not a mere necessary qualification of him to be the Mediator, or what renders his obedience, sacrifice, and intercession, efficacious and valuable, or is merely exemplary to us, but is what is imputed to us, as a part of our justification. The law requires a holy nature of us, we have not one, Christ assumed one for us, and so is the end of the law, or answers the requirement of the law in this respect, as well as in all others: and hence, though sanctification begun in us, does not free us from the being of sin, and all its force and power, yet perfect sanctification in Christ frees from all condemnation by it.