What sins people commit Prove they were never born-again to begin with?
Can a person be born-again more than once?
First step is to ask oneself: "Am I born again?". If, after a sincere self examination, the answer is YES then we can go ahead. Well, I'm very weak in the faith, but still I think I am a born-again Christian.
A variety of sins, specially if repeated, can prove someone is not born again, for example: ADULTERY. I know many "Christians" who think they can cheat on their spouses and get away with it. I'd rather believe they were never born-again, so they still have the chance of being truly converted before it's too late.