KJV: I speak after the manner of men because of the infirmity of your flesh: for as ye have yielded your members servants to uncleanness and to iniquity unto iniquity; even so now yield your members servants to righteousness unto holiness.
NASB: I am speaking in human terms because of the weakness of your flesh. For just as you presented your members as slaves to impurity and to lawlessness, resulting in further lawlessness, so now present your members as slaves to righteousness, resulting in sanctification.
KJV: For when we were in the flesh, the motions of sins, which were by the law, did work in our members to bring forth fruit unto death.
NASB: For while we were in the flesh, the sinful passions, which were aroused by the Law, were at work in the members of our body to bear fruit for death.
KJV: For I know that in me (that is, in my flesh,) dwelleth no good thing: for to will is present with me; but how to perform that which is good I find not.
NASB: For I know that nothing good dwells in me, that is, in my flesh; for the willing is present in me, but the doing of the good is not.
KJV: I thank God through Jesus Christ our Lord. So then with the mind I myself serve the law of God; but with the flesh the law of sin.
NASB: Thanks be to God through Jesus Christ our Lord! So then, on the one hand I myself with my mind am serving the law of God, but on the other, with my flesh the law of sin.
KJV: For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh:
NASB: For what the Law could not do, weak as it was through the flesh, God did: sending His own Son in the likeness of sinful flesh and as an offering for sin, He condemned sin in the flesh,
KJV: For they that are after the flesh do mind the things of the flesh; but they that are after the Spirit the things of the Spirit.
NASB: For those who are according to the flesh set their minds on the things of the flesh, but those who are according to the Spirit, the things of the Spirit.