If you follow my reviews you know I'm not exactly a Calvinist. Arguably Calvinism never would have arisen if not for Romans 9. Ironically, it's impossible to properly understand Romans 9 without understanding Paul's citations, and this has been a weak point in reformed exegesis. The problems Paul raises do not concern medieval Catholicism. Paul would have been puzzled by modern day debates over predestination. No, Paul is dealing with issues crucial to Judaism in the wake of Jesus's inaugurated kingdom. Has God failed the people of Abraham in inviting Gentiles into His plan?
This is where The Edomite Enigma is helpful. Williams points out to the irony of equating Esau with reprobation given God's promises - made even to the the Edomites - in the Old Testament. This is in keeping with my discoveries as I became better acquainted with the Old Testament for myself. Take Cain for example. He was the rejected son, but his condemnation was not inevitable. God took the initiative - not to cut off the way of salvation, but to illuminate the path to restoration. I recall my perplexity when Jacob was reconciled with Esau, and that God had blessed Esau in his own right. True, not as a covenant bearer, but in many of the ways the covenant was always meant to bless the nations. Same with Hagar and Ishmael. God hardly deals with them as vessels of destruction. Instead they receive a promise of their own.
Ultimately Romans 9 was never about limiting God's salvation but opening it up. Opening it the way He always intended, through a chosen remnant through whom God would bless all those who believe.