13 Now when Jesus came to the area of Caesarea Philippi, he asked his disciples, “Who do people say the Human One is?”
14 They replied, “Some say John the Baptist, others Elijah, and still others Jeremiah or one of the other prophets.”
15 He said, “And what about you? Who do you say that I am?” 16 Simon Peter said, “You are the Christ, the Son of the living God.”
17 Then Jesus replied, “Happy are you, Simon son of Jonah, because no human has shown this to you. Rather my Father who is in heaven has shown you." (Common English Bible)
Similarly, Peter doesn’t actually get around to what he himself believes about Jesus right away here in Matthew 16—he sort of hems and haws, saying “Well, some say you’re John the Baptist, some say you’re Elijah, and still others say you’re Jeremiah or one of the prophets.” It’s like Peter just started playing Who Wants to Be a Millionaire, and he’s blowing his ask-the-audience lifeline on the $100 question: Who do you say that Jesus is?