John 21:18-19 — Jesus's prediction of Peter's death (stretching out his hands) as biblical evidence for Peter's martyrdom, with dual-hypothesis argument

John 21:18: "When you are old you will stretch out your hands and another will dress you and carry you where you do not want to go." John 21:19 explicitly states this was said to indicate the kind of death by which Peter would glorify God. Mike argues: (1) if the Bible is inspired, Jesus genuinely predicted Peter's martyrdom; (2) if not inspired and written after the fact, the passage was written because Peter actually died that way. Either way, Peter's martyrdom is established. There is debate whether the death was crucifixion or burning at a stake.