Where is John's "testimony" of the Olivet Discourse? Is it the entire Book of Revelation?
Why didn't John write about such a stunning and shattering statement made by Jesus that ALL of Jerusalem was going to be destroyed?
Perhaps he did. Is the answer in "Revelations" and these corrupt churches have perverted the "actual words"? The words are there…research for yourself!
>https://www.christianity.com/jesus/is-jesus-god/the-gospels/what-is-the-q-source.html