I think that you are still failing to understand what the word through means. This is definitely a lack of reading comprehension on your part.
And the definition of the word 'through' will help unjumble this mess.... how? I think the problem is not my comprehension of a word, but rather your comprehension of a verse in its proper context.
I would venture to say, using your own tactics against you (since turnabout is fair play) that this verse is taken out of context.
Oh, trust me; I'm more than willing to get into Romans 9. If you insist.