Matthew 16:13–20

“Who do you say I am?” asked Jesus. Simon Peter answered the Lord and said that He indeed was the Messiah, the Son of the living God. This was revealed to Simon Peter through God, and by faith, Simon Peter professed this revelation.
Jesus gave him the name Peter and declared the authority in which Peter would be invested.

13Now when Jesus came into the district of Caesarea Philippi, he asked his disciples, “Who do people say that the Son of Man is?” 14And they said, “Some say John the Baptist, others say Elijah, and others Jeremiah or one of the prophets.” 15He said to them, “But who do you say that I am?” 16Simon Peter replied, “You are the Christ, the Son of the living God.” 17And Jesus answered him, “Blessed are you, Simon Bar-Jonah! For flesh and blood has not revealed this to you, but my Father who is in heaven. 18And I tell you, you are Peter, and on this rock I will build my church, and the gates of hell shall not prevail against it. 19I will give you the keys of the kingdom of heaven, and whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.” 20Then he strictly charged the disciples to tell no one that he was the Christ.