Vivian. I am getting into this now...
Firstly I would like to support my argument by pointing out that you probably hate god and this is why you probably do not understand.
We also have the words of Egyptian, Babylonian, Greek, Roman, Hindu, Islam Zoroastrian, Semitic and other religions from thousands of years ago. Are those also here because of divine intervention?
If you managed to take time from your sinful life to think about things more clearly, you would probably agree that the Egyptian, Babylonian, Greek, Roman, Hinduism (possibly), Zoroastrian have little influence in today's modern world and are not understood by us good Christians . Islam and Semitic religions are Abrahamic religions and covered by the prophecy.
My counter-argument here is that what special knowledge is required? Lots of people say things will last forever. Religions say that all the time. Why is it special that, out of all of those claims, one happened to maybe be right (since we can't ever prove it came true)?
That kind of demonic baby eating logic demonstrates how disingenuous you are; basically you have just made it clear you would not accept any prophecy as being provable. If I predicted an asteroid will hit earth tomorrow - and one did - even if I could demonstrate this could be unknowable by science you could just brush it off saying "Well people are predicting asteroid impacts all the time, you just got lucky".
You ask what special knowledge is required. I could write an endless list of the journey of the Abrahamic religions and claim "that" is the knowledge required to make the claim. I could pick one thing - the special knowledge that Constantine the Great would convert and help the religion on its way.
If you are soooooo smart why don't you try and write a book that will still be around in 2000 years - case closed. You are so close minded.
Right I'm off to pray for some sick people... saves actually doing anything.