I believe your thinking is just like those Israel brethren who have a zeal of God, which is evidence that they are children of God, but not according to knowledge. They are holding on to the old law of works and are going about trying to establish their own righteousness by their good works. They do not have a solid understanding of the law of grace. Paul, in the rest of chapter 10 instructs them what they can do to be saved ( delivered ) from that lack of knowledge by being taught eternal deliverance, ( salvation ) by the grace of God and not by their works.
I believe your thinking is steeped in calvinism and not in the truth of God's Word.