Christians will be snatched away when the Lord descends with a shout. Jesus' Prophecy About Peter. Another objection to the doctrine of imminency stems from what Jesus told Peter, as recorded in John 21. This prophecy, which we know now indicated that Peter would be arrested and martyred, is used by some to refute the possibility of imminency. The return of Christ could not have been imminent because Jesus would have had to wait at least until Peter had passed from the scene at an old age.
Age is such a relative term.
In the New Testament era, lifespans were much shorter than they are now. Taking into account that Peter was already in his mid-thirties when Jesus spoke those words, it would not be very many years until he too could consider himself old. Granted, there would have been a few years in the first century during which anyone who knew of this prediction would have known that Jesus' coming was not imminent, but that time was brief.