Matthew 21:11 records the crowd calling Jesus a prophet — one answer to the question Jesus asked here.

In Daniel 7:13, 'one like a son of man' receives dominion — the OT source of Jesus' title, revealing its divine and royal meaning.

Mark 8:27 is the parallel account of Jesus asking the same question at Caesarea Philippi — a direct synoptic parallel.

Luke 9:18-20 is the Lukan parallel of the same question about who people say Jesus is — a direct synoptic parallel.

John 12:34 has the crowd directly questioning who the Son of Man is, echoing Jesus' question here.

Ezekiel 2:1 uses 'son of man' for a human prophet, prefiguring Jesus' unique self-designation as the Son of Man.

John 7:12 shows divided public opinion about Jesus, similar to the varied reports Peter is asked about.