Mark 6:14-16 shows Herod and others speculating that Jesus is John raised or Elijah, providing the background for these rumors.

In Mark 9:11-13, Jesus explains that Elijah has come (John the Baptist), directly addressing the Elijah speculation here.

Mark 6:15 records earlier similar speculation about Jesus being Elijah or a prophet, echoing the same rumors.

Malachi 4:5 is the prophecy of Elijah's return, which underlies the people's expectation that Jesus might be Elijah.

Matthew 14:2 has Herod directly saying Jesus is John the Baptist raised, matching the same rumor the disciples report.

Matthew 16:14 adds Jeremiah to the list of who people say Jesus is, a parallel account of the same speculation.

In Luke 9:7-9, Herod's perplexity shows the same speculation from a ruler's perspective, fueling the identity question.

Luke 9:8 also records that some said Elijah had appeared, a parallel of the same speculation.

In John 1:21, John the Baptist denies being Elijah, showing the contemporary speculation about Elijah's identity.