Romans 9

Not everything in the Bible is something that we can completely understand. We are the creation of an infinite being, so we are limited by our position in the universe. Our perspective gets in the way. The question that Paul is wrestling with in the passage, though, is really centered on why the Jews are not the main target of his ministry. The Jews are supposed to be the chosen people, so why is Paul preaching to the Gentiles.

Paul asserts that the chosen people has little do with the physical lineage of anyone, and more to do with God's promises. God promised to bless Abrahams' descendants through Isaac, and the fact of that is that He didn't mean, literally, all of the physical descendants. God meant that He was going to bless those that followed from His promise and were born in faith.

So the natural question is, why not bless the others? To which the only sensible answer is, what position are we in to question God? God created each of us for a purpose, and throughout the Bible He has chosen to use people to show His glory. What if He chose that some would be saved to show His mercy and others would not to show His justice? I don't know that He did or didn't do that, the Bible seems to indicate both that He did and that He didn't and my brain can't really reconcile the two. The point, though, is that it doesn't matter.

God saved me and I praise Him for that. God commands me to share His gospel with others, and I try to be obedient in that. That's really all that mattes.