Are You a Judas or a Peter?1
How about us?
1 in 5 Americans say they don't even know a Christian. Let's say they know you, and you say you are a Christian; the question is: are you for real? How do you know if you are? (For starters, read John 15:1-17).
What are we doing? Are we for real? Are we playing games? Are we a Judas (sinfully opposed and eternally lost) or a Peter (sincerely wrong yet truly repentant and truly saved)? Judas found no place for repentance; Peter did. We all sin, but we aren't all being saved.