(12-17) These verses form a hortatory application of the foregoing, with further development of the idea to live after and in the Spirit.

(12) We are debtors.--We are under an obligation. Observe that in the lively sequence of thought the second clause of the antithesis is suppressed, "We are under an obligation, not to the flesh (but to the Spirit)."

Verses 12, 13. - So then, brethren, we are debtors, not to the flesh, to live after the flesh; for if ye live after the flesh, ye must (μέλλετε, expressing here a result that must; follow. The Authorized Version has "shall;' not distinguishing the force of the phrase from that of the simple future ζήσεσθε which follows), die; but if by the Spirit ye do mortify (rather, do to death, or make to die, so as to correspond to the die preceding) the deeds of the body, ye shall live. Here "the body" (τοῦ σώματος) must be taken in the same sense as in vers. 10, 11. True, the "deeds" spoken of are, in fact, those of the flesh; but the body is regarded as the organ of the lusts of the flesh, and it is fitly named here in connection with the thought of the preceding verses. The word translated. "deeds" is πράξεις, denoting, not single acts, but rather doings - the general outcome in action of fleshly lusts using the body as their organ. Μέλλετε ἀποθήσκειν and ζήσεσθε, viewed in connection with ζωοποιήσει in ver. 11, seem to point ultimately to the result hereafter of the two courses of life denoted: but not, it would seem, exclusively; for our future state is constantly regarded by the apostle as the continuance and sequence of what is begun in us already - whether of life in Christ now unto life eternal, or of death in sin now unto death beyond the grave. The general idea may be stated thus: If ye live after the flesh, the power in you to which you give your allegiance and adhesion will involve you in its own doom, death; but if ye live after the Spirit, you identify yourselves with the Spirit of life that is in you, whereby you will be emancipated at last even from these your mortal bodies, whose doings you already slay.

8:10-17 If the Spirit be in us, Christ is in us. He dwells in the heart by faith. Grace in the soul is its new nature; the soul is alive to God, and has begun its holy happiness which shall endure for ever. The righteousness of Christ imputed, secures the soul, the better part, from death. From hence we see how much it is our duty to walk, not after the flesh, but after the Spirit. If any habitually live according to corrupt lustings, they will certainly perish in their sins, whatever they profess. And what can a worldly life present, worthy for a moment to be put against this noble prize of our high calling? Let us then, by the Spirit, endeavour more and more to mortify the flesh. Regeneration by the Holy Spirit brings a new and Divine life to the soul, though in a feeble state. And the sons of God have the Spirit to work in them the disposition of children; they have not the spirit of bondage, which the Old Testament church was under, through the darkness of that dispensation. The Spirit of adoption was not then plentifully poured out. Also it refers to that spirit of bondage, under which many saints were at their conversion. Many speak peace to themselves, to whom God does not speak peace. But those who are sanctified, have God's Spirit witnessing with their spirits, in and by his speaking peace to the soul. Though we may now seem to be losers for Christ, we shall not, we cannot, be losers by him in the end.Therefore, brethren, we are debtors,.... The appellation, "brethren", is not used, because they were so by nation or by blood, though many in the church at Rome were Jews; nor merely in a free familiar way of speaking; but rather on account of church membership, and especially because they were in the same spiritual relation to God and Christ: and the use of it by the apostle, shows his great humility and condescension, and his love and affection for them, and is designed to engage their attention and regard to what he was about to say, to them and of them; as that they were "debtors"; which is to be understood of them not as sinners, who as such had been greatly in debt, and had nothing to pay, and were liable to the prison of hell; for no mere creature could ever have paid off their debts; but Christ has done it for them, and in this sense they were not debtors: but they were so as saints, as men freed from condemnation and death; which doctrine of Christian liberty is no licentious one; it does not exempt from obedience, but the more and greater the favours are which such men enjoy, the more obliged they are to be grateful and obey; they are debtors, or trader obligation,

not to the flesh, to corrupt nature,

to live after the flesh, the dictates of that; nor should they be, both on God's account, since that is enmity to him, and is not subject to his law; and on their own account, because it is an enemy to them, brings reproach on them, and exposes them to death; but though it is not expressed, it is understood, that they are debtors to God; to God the Father, both as the God of nature, and of grace, as their covenant God and Father in Christ, who has blessed them with all spiritual blessings in him; to Christ himself, who has redeemed them by his blood: and to the Spirit of God who is in them, and for what he has been, is, and will be to them.