Luke 9:18-20

18And it came to pass, as he was praying alone, the disciples were with him: and he asked them, saying, Who do the multitudes say that I am?

19And they answering said, John the Baptist; but others say, Elijah; and others, that one of the old prophets is risen again.

20And he said unto them, But who say ye that I am? And Peter answering said, The Christ of God.