And certain men came down from Judah and were teaching the brothers, “Unless you are circumcised, according to the practice of Moses, you are unable to be saved.” Acts 15:1
Is that what this argument really is about: that you must be circumcised to be saved? Many in the traditional Christian church have misunderstood this passage and incorrectly concluded that what the Pharisees in Acts 15 were arguing was this: that one must follow the law (the torah) in order to be saved. This is not the debate, the argument, or the question on the table.
What is the real question being addressed? The real question is this: What has greater torah weight: circumcision of the flesh? Or circumcision of the heart? Is there a larger question here? What does this discussion/disagreement that Paul was having with the Pharisees have to do with the restoration of the tabernacle of David?