I agree that God works within the choices of men. But if you read Acts 2:37 you find God enabling ears to here and circumsizes the heart. I believe this is what alters the volition and leads to...what shall we do?
Many more than 3000 people heard Peter's sermon. What caused some to believe while others did not? As I understand the passage, the working of hearing and the pricking of the heart is the answer. Both these things done internally are works that only God can do. So while I believe fallen man has the ability to understand and make choices, I also believe that those choices are subject to His nature. Since I don't believe choosing God to be possible in the fallen nature, I believe God must first alter the corruption of the fallen nature before man can choose outside of that nature and its corruption.
I don't disagree with what your saying here.
It is a fact that the prime mover in salvation is Christ alone, I am a strong on the sovereignty of God.
Unfortunately, we are constant wresting within ourselves between serving Jesus and self fulfillment.
There are two playing fields in Romans, the sovereignty of God and mankind's choices.
Do we choose salvation as Gentiles?
Of course we don't and never could until Israel chose to oppose Jesus.
This is what Romans is teaching us.
Israel failed and were grafted out which enabled abundant grace for the Gentiles.
Israel were the original chosen people of God not the Gentiles.
The Gentiles were an unknown nation to make Israel jealous.
Paul is not giving a sermon on sovereignty.
Paul is explaining why Israel failed to achieve righteous through the law.
If you ignore the CONTEXT in Romans you will fail to understand what Paul is talking about.
You will end up being baptized into Calvinism just like the different groups in Corinth.