John 21:17 restores Peter and predicts his martyrdom — showing that his boast to lay down his life is eventually fulfilled, but only after denial and restoration.

In John 11:16, Thomas similarly declares he will die with Jesus, showing a pattern of disciples' misguided bravery.

John 21:19 reveals Peter's eventual martyrdom, showing his earlier willingness to lay down his life was prophetic.

Matthew 26:31-35 records the same scene: Jesus predicts desertion, Peter insists he'll never fall away, even to death.

Mark 14:27-31 parallels this: Jesus foretells the disciples' flight, but Peter vows to die with Him rather than deny.

Luke 22:31-34 adds that Satan demanded to sift the disciples; Peter still insists he's ready for prison and death.

Luke 22:33 records Peter's identical pledge: 'I am ready to go with you to prison and to death.'

Paul warns that even giving one's body to be burned without love is worthless — a sobering check on Peter's boast.