I know I am going to heaven, because I said the words of the Sinner's Prayer. You must be one of those Calvinists who believes every Christian must have a testimony backed up by a changed life. You believe in a works plan of salvation. The point is not that all members of evangelical churches are superstitious pagans trying to presume their way into heaven without the evidence of a changed life to back up their hopes. I am certain that many evangelicals are genuinely saved, but I am also certain that many Christians have been robbed in their spiritual growth, set up for tribulation, beaten by bad health, poverty, and premature death.
Bad theology has horrible consequences.
If we believe and persuade others that only gross sinners like drunkards and thieves must demonstrate that the Lord is setting them free from sin, we are claiming or witnessing to a salvation that does not exist. The genuine salvation, that is not of works but of the Savior, will change our lives into a life like the Lord's. If we cannot point to victory over sin in our lives, we are walking downward to hell. We must judge ourselves before the great and totally true Witness which reveals by our works whom we are really trusting for salvation. For too many, it will be the disappointing dream of the creative power of their own words.