Luke 7:36-39 (HCSB)

 Then one of the Pharisees invited Him to eat with him. He entered the Pharisee’s house and reclined at the table. And a woman in the town who was a sinner found out that Jesus was reclining at the table in the Pharisee’s house. She brought an alabaster jar of fragrant oil and stood behind Him at His feet, weeping, and began to wash His feet with her tears. She wiped His feet with the hair of her head, kissing them and anointing them with the fragrant oil.
 When the Pharisee who had invited Him saw this, he said to himself, “This man, if He were a prophet, would know who and what kind of woman this is who is touching Him — she’s a sinner!”

     So much irony in this little story!  The Pharisee thinks to himself, but as we immediately find out, Jesus knows what the man is thinking.  Indeed, he understands better than the Pharisee that the woman who anoints his feet is a sinner, but Jesus also understands something that the Pharisee does not understand at all: The judgmental Pharisee is just as much a sinner as the weeping woman.  Here’s one irony: the woman understands that she is a sinner, but the Pharisee does not understand that he is.
     If he were a prophet. Here is the second irony: Jesus is greater than a prophet.  Prophets couldn’t understand people’s minds, but Jesus could understand this man’s mind.  
     The third irony is that the one who leaves that encounter with Christ saved, is not the Pharisee, but the sinner woman!  The Pharisee thinks he is righteous before God, but he is not, and the woman knows that she is a sinner, but goes away from that encounter saved because of her faith in Jesus.  
     Luke 7:50 (HCSB)
And He said to the woman, “Your faith has saved you. Go in peace.”