Mark 6:16
But when Herod heard thereof, he said, It is John, whom I beheaded: he is risen from the dead.
Cross-references
Matthew 14:2
Parallel
Matthew 14:2 records Herod's identical statement that John has been raised — a direct parallel account of this verse.
Luke 9:9
Parallel
Luke 9:9 has Herod saying he beheaded John and wondering about Jesus — parallel account of Herod's reaction.