I said claiming salvation without validation.
There is only One who validates one's claim of salvation and that validation is called the Judgement that every man undergoes (unless Jesus, Paul, and the entire NT is wrong).
"In the day when God shall judge the secrets of men by Jesus Christ according to my gospel." (the gospel committed to Paul). ROm. 2:16. It is the gospel of the grace of God that saves. Without it, you are dead in your sins. There remains no other sacrifice for your sins if you have rejected the finished work of Christ on your behalf. God will judge men by that very gospel.