I do not think that these verses are speaking about Paul's sin which he spoke of at Romans 7:7-10 because according to him that sin brought spiritual death.
Agreed. I believe the verses mentioned (Romans 7:7-10) is what any person experiences. It is at that point one is dead in sin. After that one may continue to strive to keep the law/Law, but have already been disqualified from the race. They may run, but never finish. And for argument sake, Even if one does cross the finish line, without Christ, living a "good" life, they are still with sin from their past. If they do not have Christ as their atonement, their sins are still with them and they will die lost
Now to another point. Paul asks a question as to how he will be delivered from his problem concerning his sinning:
"O wretched man that I am! who shall deliver me from the body of this death?" (Ro.7:24).
In answering the question which he himself asked he demonstrates that his problem remains the same and this problem is in effect at the time when he is a believer:
"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" (Ro.7:25).
I believe that he is thanking God for the knowledge of the Lord Jesus because it is that knowledge that enables him to "serve the law of God."
I do not see how his thankfulness to God can be understood in any other way than being thankful for allowing him to "serve the law of God."
Then after stating the problem every new believer faces he immediately speaks of the Christian's walk and and explains exactly how to overcome sin and to fulfill the law:
"There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit. For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death. 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: That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit. 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" (Ro.8:1-5).
I cannot see how the last part of chapter 7 can possibly be separated from the first part of chapter 8. Especially since chapter 7 is speaking about the same exact problem which confronts those who are new in Christ.
There is no question that Paul was a saved man while writing "O wretched man that I am", but even a lost person can cry those same words. I know many will find fault with that, but I have met many unsaved people that have tried to stop doing this or that. Many go to AA or a psychiatrist to help them stop doing things they know they should not do (sinning).
Those that don't stop doing them will do a number of things. 1) go head long into it, embracing it as just the way they are. 2) Fight it for the rest of their life and hope their good outweighs their bad. 3) Hide it and hope no one finds out. 4) I missed something I' sure.
In Romans 7 this man has just accepted that as long as he is serving God with his mind the flesh doesn't really matter anyway. So in the end, he is just hoping his good will outweigh his bad. Works salvation. Sadly, that is where most Christians are.
So, even though he was saved while writing this, he was referring back to his past life before coming to Christ. V:25a is an interjection, but not the "so then" conclusion to chapter 7.
It's not that we, as Christians set out to do XYZ of the law/Law, but as Paul makes clear, we yield to the Spirit and not to the flesh and XYZ of the law/Law gets done anyway. It is the fruit of the Spirit that the law/Law is fulfilled with the Christian. The law being done is the by-product of our following the Spirit., because the Spirit leads into all truth and God is truth.
Romans 8:1-4 is Paul reiterating some of his points of topic covered in Romans 5-8.
Romans 8:1 is about chapter 5
Romans 8:2 is about chapter 6.
Romans 8:3 is about chapter 7.
Romans 8:4 is about chapter 8.
Paul is very careful to lay out his argument point by point. Then he reiterates them from time to time in a nut shell. Not only that, but he also gives statements of where he is going with his argument.
He repeats himself over and over again. This how we learn any subject, repetition.
Romans is the heart of the gospel message, he tells us so many different ways, we are bound to catch on somewhere.