Cross reference
Matthew 16:15
15 He said to them, "But who do you say that I am?"
Luke 9:20
20 He said to them, "But who do you say that I am?" Peter answered, "The Christ of God."
Matthew 13:11
11 He answered them, "To you it is given to know the mysteries of the Kingdom of Heaven, but it is not given to them.
Mark 8:29
29 He said to them, "But who do you say that I am?" Peter answered, "You are the Christ."