Romans 8 needs no reconciliation and Saul was a man chosen because Saul chose. You can see Saul's conscience is at work here for he was receivable of things of God here. I think I know why there are difficulties of understanding here. It is like trying to teach a retarded person deeper things of math like calculus. It is a virtual impossible feat because they lack that which they need. They are not built to understand. Just like a reformer is not built to understand because he has not accepted the building blocks of truth that is armenianism, the true Christ. The retarded person could learn something of calculus too if they had the patience in it, but most do not, the wide path, just like calvinism is the wide path.