For we know that the law is spiritual,.... We who have a spiritual understanding of the law, who have been led into the true nature of it by the Spirit of God, know by experience that that itself is "spiritual"; and therefore can never be the cause of sin or death: the law may be said to be "spiritual", because it comes from the Spirit of God; and reaches to the spirit of man; it requires truth in the inward parts; spiritual service and obedience; a serving of it with our minds; a worshipping of God in spirit and truth; a loving of him with all our hearts and souls, as well as a performance of all the outward acts of religion and duty; and because it cannot be truly obeyed and conformed to without the assistance of the Spirit of God.
To this spirituality of the law the apostle opposes himself,but I am carnal, sold under sin: from hence to the end of the chapter many are of opinion, that the apostle speaks in the person of an unregenerate man, or of himself as unregenerate; but nothing is more clear, than that he speaks all along of himself in the first person, "I am carnal":, &c.
autov egw, "I myself", as in Ro 7:25, and in the present tense of what he then was and found; whereas, when he speaks of his unregenerate state, and how it was with him under the first convictions of sin, he speaks of them as things past, Ro 7:5; besides, several things which are said by the apostle can neither agree with him, nor any other, but as regenerate; such as to "hate evil", "delight in the law of God", and "serve it with the mind", Ro 7:15.
Moreover, the distinctions between flesh and spirit, the inward and the outward man, and the struggle there is between them, are to be found in none but regenerate persons; and to say no more, the thanksgiving for deliverance from sin by Christ can only come from such; nor are any of the things said inapplicable to men that are born again, as will appear by the consideration of them as they follow: for when the apostle says, "I am carnal"; his meaning is, either that he was so by nature, and as he saw himself when sin through the law became exceeding sinful to him; or as he might be denominated from the flesh or corruption of nature which was still in him, and from the infirmities of the flesh he was attended with; just as the Corinthians, though sanctified in Christ Jesus, and called to be saints, are said to be "carnal" on account of their envying, strife, and divisions, 1Co 3:1, or in comparison of the "spiritual" law of God, which was now before him, and in which he was beholding his face as in a glass, and with which when compared, the holiest man in the world must be reckoned carnal.