Find Your Sufficiency in Jesus
The thief on the Cross tells us so much in the Bible. He is simply one unknown man executed by the Roman on his own. It is his placement next to Jesus that makes him significant. He starts off the narrative of his death known by his crimes alone and reviling Jesus. He ends it with Jesus in Paradise.
This tells us very little about the man himself. It tells us so much about Jesus, on the other hand.
Jesus is enough to take you from sinner to saint. It is all about His work not yours.