Do you honestly think and believe that an atheist/humanist could even understand the Bible?
Yes, of course! And far better than most believers ever could. Because a believer would just repeat the fairy tales he had been raised on instead of digging into the
actual history and investigating the external sources that the Bible had drawn on (eg, the Babylonian creation and flood myths, the Code of Hammurabi). Instead of seeking information and the truth, he would have a vested interest in supporting his fairy tales, just as creationists and Trump lemmings do.
For example, whom would you trust to give you a factual history of the founding of Mormonism? A non-Mormon scholar? Or a believing Mormon who would insist on the literal truth of the golden plates and Joseph Smith's ability to translate them through mystical means?
And whom would you trust to give you a factual account of the founding and operation of Scientology? An outsider who has investigated them for decades?
Or a true believer who has gotten clear and been given access to the briefcase with the central myth (which is complete and utter bullshit craziness)?
Of course, an atheist examining the Bible could be trying to disprove it. But even then an atheist would do so
using actual facts, so even if you do not accept the disproof you will still benefit from learning
actual facts. In contrast, reading a believer's apologetics based on fairy tales would still leave you starved of actual facts.
I could care less what Asimov's credentials are...he is speaking on a subject with which he has no familiarity.
That makes absolutely no sense at all. If you actually study a subject, then you
will have familiarity with that subject regardless of whether you believe in it or not. And indeed, as a non-believer you should have far more familiarity with the subject because you would have studied
all aspects of the subject, including both its strengths and weaknesses, whereas a believer would only study the strengths and ignore the weaknesses (even to the point of denying that the weaknesses even exist).
This also gets us into the differing goals of religious education and secular education. As I have often quoted from the California science education guidelines, the goal of education is that the student
understand the subject matter and
not to compel belief. In sharp contrast, the goal of religious education is
indoctrination in which the student is
compelled to believe (and "balanced treatment" creationist educational materials have been found to end every lesson compelling the student to make a life choice right then and there between an "unnamed Creator" and "atheistic evolution"). In my own online experience with creationists, when I have urged that they study evolution in order to learn what it really is and says, they have rejected that idea absolutely because "that would require me to believe in evolution".
Also, a believer's familiarity with the Bible is through his own religious education which is characterized by reading individual verses or small groups of verses and interpreting them
out of context. In contrast, a non-believer would be far more likely to read entire chapters and books of the Bible such that when he reads those same verses he would be reading and interpreting them
in context. Indeed, entire denominations of Christianity depend on out-of-context interpreting (and misinterpreting) of single verses.
He does not have the Holy Spirit nor do you.
What is that supposed to have to do with anything? How is that supposed to affect an
honest scholarly work?
Of course, in your fairy tales the Holy Spirit is supposed to guide you to what the Bible actually says. Haven't you ever found it odd that millions of believers have been guided by the same Holy Spirit in learning what the same Bible actually says
and they all come up with different results? If that magic trick by the Holy Spirit actually worked, then there should be only one single Christian church instead of the immense splintering of Christianity into a near-infinite number of churches all disagreeing vehemently with each other. The proof of the pudding is in the eating.
Facts are facts. Follow the facts. Spooky claims are no substitute for following the facts.
I've mentioned this one before, but it seems appropriate since Isaac Asimov's upbringing was Jewish. The 2011 movie,
Mein Bester Feind ("My Best Enemy"), has as its
MacGuffin an unknown sketch of Moses by Michelangelo owned by a Jewish art dealer. When his gentile best friend (later to join the SS) asked why Moses is depicted with horns, the art dealer explains that it was due to a Christian mistranslation adding, "Christians have no idea how to read the Bible." How true, how very true.