I don't know about that. Again, the once saved always saved crowd has themes and variations on this. Some claim it's a virtual get out of "hell" free card. Others claim that those who return to a sinful nature probably weren't saved to begin with. But then, where does one draw the line between a sinful nature that is forgiven and a sinful nature that indicates not having made the conversion?
I'm not haranging you on this. I struggle with this all the time.
I saw someone coined an acronynm. CINO, Christian in Name Only.