Fair enough, I think we understand one another. Another reason this can be painful is if someone were a Dispy who believes in the Two-People of God; the Christians and CE Israel. Their faith is a Filthy-Rag without the only name given under Heaven by which all Men must be Saved...Of course they would Their whole religious system is built around Jesus being PHONY. Not "Antisemitic" in the NAZI sense, but when you're told that your "Precious Religious beliefs" will send you to HELL, they're not likely to respond favorably to that information.
Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.