Contradiction with Mark 6:16
Herod believed John the Baptist had risen from the dead, showing fear about John's execution, not just his burial as in Mark 6:29.
Mark 6:16: But when Herod heard [thereof], he said, It is John, whom I beheaded: he is risen from the dead.
Contradiction with Matthew 14:2
Herod remarks to others that Jesus is John the Baptist, risen from the dead, adding a supernatural element not present in Mark 6:29.
Matthew 14:2: And said unto his servants, This is John the Baptist; he is risen from the dead; and therefore mighty works do shew forth themselves in him. [do...: or, are wrought by him]
Contradiction with Luke 9:9
Herod expresses confusion about who Jesus is, contrasting with Mark 6:29's straightforward account of John's disciples taking his body for burial.
Luke 9:9: And Herod said, John have I beheaded: but who is this, of whom I hear such things? And he desired to see him.
Contradiction with John 5:36
Jesus's works are cited as greater testimony than John's, illustrating a shift from John’s burial focus in Mark 6:29.
John 5:36: But I have greater witness than [that] of John: for the works which the Father hath given me to finish, the same works that I do, bear witness of me, that the Father hath sent me.