From memory, I think the Lord Jesus spoke these prophecies to His Disciples. I think it was directly after He predicted the destruction of the Temple in AD70.We have been told what to think, but the truth can no longer be suppressed.
This
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I've never heard any theologian claim that any of the Disciples thought that He would return in their lifetimes.
So, with all due respect I'm going to dismiss your view as speculation. My pastor told me to disregard anything new and always stick with the old proven theology.

