{By what manner of death} (poi(9369) thanat(9369)). Undoubtedly
John, who is writing long after Peter's death, seems to mean that
Peter was to die (and did die) a martyr's death. "Whither thou
wouldest not." There is a tradition that Peter met death by
crucifixion and asked to be crucified head downwards, but that is
not made plain here.