Romans 8:12

After showing how great the reward of a spiritual life is, and that it maketh Christ to dwell in us, and that it quickeneth our mortal bodies, and wingeth them to heaven, and rendereth the way of virtue easier, he next fitly introduces an exhortation to this purpose. "Therefore" we ought "not to live after the flesh." But this is not what he says, for he words it in a much more striking and powerful way, thus, "we are debtors to the Spirit." For saying, "we are debtors not to the flesh," indicates this. And this is a point he is everywhere giving proof of, that what God hath done for us is not matter of debt, but of mere grace. But after this, what we do is no longer matter of free-will offering, but of debt. For when he saith, "Ye are bought with a price, be not ye the servants of men"; and when he writes, "Ye are not your own"; and again in another passage he calls these selfsame things to their mind, in these words, "If One died for all, then all died that they should not henceforth live unto themselves." And it is to establish this that he says here also, "We are debtors;" then since he said we are "not" debtors "to the flesh," lest you should again take him to be speaking against the nature of the flesh, he does not leave speaking, but proceeds, "to live after the flesh." For there are many things which we do owe it, as giving it food, warmth, and rest, medicine when out of health, clothing, and a thousand other attentions. To prevent your supposing then that it is this ministration he is for abrogating when he says, "We are not debtors to the flesh," he explains it by saying, "to live after the flesh." For the care that I am for abrogating is, he means, that which leadeth to sin, as I should be for its having what is healing to it. You see that it is not the essence of the body whereof we are discoursing, but the deeds of the flesh. For he does not say, "if ye through the Spirit do mortify" the essence "of the body," but "the deeds of" it, and these not all deeds, but such as are evil. And this is plain in what follows: for if ye do this, "ye shall live," he says. And how is it in the nature of things for this to be, if it was all deeds that his language applied to? for seeing and hearing and speaking and walking are deeds of the body; and if we mortify these, we shall be so far from living, that we shall have to suffer the punishment of a manslayer. What sort of deeds then does he mean us to mortify? Those which tend toward wickedness, those which go after vice, which there is no other way of mortifying save through the Spirit. For by killing yourself you may put an end to the others. And this you have no right to do. But to these you can put an end by the Spirit only. For if This be present, all the billows are laid low, and the passions cower under It, and nothing can exalt itself against us.