I have seen a few Christians claim that many of what appears to be historical documents in the bible, actually did not occur at all.
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What makes think that except for your own faith or based on the fallacy that the absence of evidence is the evidence of absence?
It's pretty safe to say that the most parts of human history (of 1000 more nations and over up to 5000 years) are not evidence base. You choose to believe what the historians wrote, that's the case. In the case that you acquired the evidence, it can only be a bonus. Still the most parts of it are without the so-called evidence.
It's actually a process of witnessing, that is, to some parts of human history you have to trust what was written by other humans. Religions behave the same way, it is because so that a true must have a criteria in choosing His witnesses and to set up rules to ban false witnessing. Christian God could be the only God doing so. Other gods don't seem to understand this nature of history/religion to do the same.
Measures taken:
1) the scriptures must be witnessed and written by authenticated witnesses such as the formally assigned prophets or apostles.
2) through the commandments the Jews were educated not to bear false witnessing. This is to prepare the prophets (OT) to bear witness for God, as they are exclusively the Jews. Thus in the Jews culture, a witnessing is valid only when witnessed by more than 1 humans.
3) as for NT, 10 out of the 12 direct witnesses (the disciples) martyred themselves as a witness to what was said and done. And there are several verses saying that "don't do false witnessing". In the book of revelation, it is even said that the liars will be burnt to the Lake of Fire.
Other gods don't take such a measure perhaps because they are clueless about what the nature of human history is.
Edited by Hawkins, : No reason given.