When Jesus hung on that cross there were two thieves hanging there with him, one on each side. You can find the story in Matthew 27:38-44, and Luke 23:39-43
   And one of the malefactors which were hanged railed on him, saying, If thou be Christ, save thyself and us. 40.  But the other answering rebuked him, saying, Dost not thou fear God, seeing thou art in the same condemnation? 41.  And we indeed justly; for we receive the due reward of our deeds: but this man hath done nothing amiss. 42.  And he said unto Jesus, Lord, remember me when thou comest into thy kingdom. 43.  And Jesus said unto him, Verily I say unto thee, To day shalt thou be with me in paradise.  
  These two men were to me a perfect picture of so many who come to Jesus. They were both guilty, but only one would admit it. They were both right next to their Messiah, but only one would believe it. They BOTH asked Jesus to save them, one from the cross, the other from his sin. Which kind of thief are you?