Matthew 15:15-17 says:
15Then Jesus said to his followers, "And who do you say I am?"16Simon Peter answered, "You are the Christ,* the Son of the living God."17Jesus answered, "You are blessed, Simon son of Jonah. No person taught you that. My Father in heaven showed you who I am.
Christ The "anointed one" (Messiah) or chosen one of God.