Paul says here that with his flesh he serves sin?
Romans 7:25 KJV
[25] 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.
Tecarta Bible
Romans 7 is Paul's description of those before Christ and the dilema and struggle they went through due to still having
sin in their nature. It is all about sin. But keep reading. Romans 8:1-9 Note, Paul still uses the word "me."
There is therefore now no condemnation to those who are in Christ Jesus,
who do not walk according to the flesh, but according to the Spirit. 2 For the law of the Spirit of life in Christ Jesus has made me free from the law of sin and death. 3 For what the law could not do in that it was weak through the flesh, God
did by sending His own Son in the likeness of sinful flesh,
on account of sin: He condemned sin in the flesh, 4 that the righteous requirement of the law might be fulfilled in us who do not walk according to the flesh but according to the Spirit. 5 For those who live according to the flesh set their minds on the things of the flesh, but those
who live according to the Spirit, the things of the Spirit. 6 For to be carnally minded
is death, but to be spiritually minded
is life and peace. 7 Because the carnal mind
is enmity against God; for it is not subject to the law of God, nor indeed can be. 8 So then, those who are in the flesh cannot please God. 9 But you are not in the flesh but in the Spirit, if indeed the Spirit of God dwells in you. Now if anyone does not have the Spirit of Christ, he is not His.
"Condemned sin in the flesh" means he killed the desire to sin from our nature, making our natures born again of the Spirit. This is why Romans 6 says we are dead to sin. And 8:9 says we are NOT in the flesh (old nature) but in the Spirit.