See if you can rethink this post making it consistent with Rm. 2:11, and other like passages. If you succeed, you may even find that it has a profound effect on the stumbling block between the OT and the NT.
but glory, honor and peace for everyone who does good: first for the Jew, then for the Gentile.
I wonder why it mentions "first for the Jew, then the Gentile?"
Then it concerns people doing works. People who do good. It addresses people who do evil. It's a good vs evil theme instead of an elect vs non-elect theme.
Then it goes in to doers of the Law vs not doers of the Law.
I'm not really sure how to see this concerning election to salvation. We read that God can have mercy on whom he can have mercy. God chose Israel. God chose a remnant from Israel and hardened the rest. He did this based on grace and not works.
So the way I see God operating is that he can choose to save all Israel if he wants to. Especially if he made a promise to Israel to do this. He is the Potter. He gets to choose.
It's kinda like the way God chooses more kids of believers than he does kids of the Muslims or the Hindu. Even though he isn't a respecter of men he chose Isaac over Ishmael. He chose Jacob over Esau.
In a way God is showing partiality by whom he elects. He doesn't show partiality as to which humans were born capable of sin.