“Paul is saying that Adam as the head brought Death and Sin upon ALL MANKIND.” Every human since Adam, as direct descendants of Adam (Jesus was not completely since His Father Is The Holy Spirit) has inherited a human spirit without God’s life in it. Even Jesus verifies this for us in John chapter three, telling us “Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.” I happen to believe Jesus is referring to the amniotic ‘water’ and the Spiritual birth of God’s Life coming into the human spirit. If a man is a human, he is born of ‘water’ but must be born of the Spirit to be then born into God’s family.
Yes, and just as you did not cause your own birth, it is God who causes that Spiritual birth and the result the confession of faith.
Most folks believe that they purchased their Salvation through their confession. We believe the confession is to show the "faith" the "Gift of God" was planted by God. Not the cart before the horse.
If Salvation is purchased by men, then men get the glory. If God regenerates and plants faith - then God gets all the glory. So it is.