“Jesus said to them, "But who do you say that I am?” (Matthew 16:15) This is the only time Jesus inquired about his own identity. The purpose speaks for itself which to turn the disciples away from the rumors. When Simon Peter said in reply, “You are the Messiah, the Son of the living God.” Jesus said to him in reply, “Blessed are you, Simon son of Jonah. For flesh and blood has not revealed this to you, but my heavenly Father.” Being able to recognize the identity of Jesus is not due to an individual’s talent, but purely from the revelation of our heavenly Father and illumination of the Holy Spirit. Jesus chose Peter as leader of the Apostles and the head of the church not because he is exceptionally clever compared to the others, but only because of God’s grace. In fact, Peter has own humanistic side and not long ago, he was reprimanded when he tried to give advice to Jesus: “From that time on, Jesus began to show his disciples that he must go to Jerusalem and suffer greatly from the elders, the chief priests, and the scribes, and be killed and on the third day be raised. Then Peter took him aside and began to rebuke him, "God forbid, Lord! No such thing shall ever happen to you." Jesus turned and said to Peter, "Get behind me, Satan! You are an obstacle to me. You are thinking not as God does, but as human beings do."” (Matthew 16:21-23) From here, we can see that to follow the way towards God we need to be tested. The concept of once and for all does not work any more. In other words, we have to update ourselves continuously towards perfection. In addition, today you will not be your past self as St. Paul’s described, “Let us put away the old self and to put on the new self.” The Christ we know today is most likely different to the one from yesterday.