" But , back to evolution, whatever has been concluded from anything from the far past, not observed, and recorded, carries with it the the bias , and conditioning of the researcher,..."

*grin* like ancient parchment scrolls? Were they really 'recorded'..or just re-told until they were accepted? *shrug*
   No one doubts that they were physically written down by men.. and the same stories were told differently by different men. We have only their crumbling documents to assure us that the stories were given to some by some spiritual being in some metaphysical way. There is certainly no way to 'test' that!
   Science at least is willing to adjust its findings when new data is discovered. I don't think the religious tenets of any belief system... Christian, Muslim, Hindu, Buddhist..etc. are often updated. The Catholic Pope in the 2nd Vatican Council was given the right to rule **Infallibly** on matters of faith & morals... and that has been an awkward and argued thing ever since. Several Muslim groups are seriously at odds over who the rightful successor to Muhammad was. A couple of Buddhist groups differ markedly on basic doctrines. And Christians even argue about which Books of the Bible were left out and how they were chosen by King James' preferred scholars.
I just shrug and try to keep up with the various sciences.