Learned society today strives so mightily to trash Scripture that you may have to reestablish its authority before people will even agree to investigate. But not always. Sometimes you can persuade them to suspend doubt. Not to be confused with taking a "leap of faith," for they don't discard doubt, they only suspend it.
Mathematicians do this all the time. Assume such and such a condition is true. Follow the logical thread. What deductions can be made? If the results are just so much horse manure, then just take back the assumption. No harm done.
But sometimes it pans out. Valuable math has been discovered this way. And not just math, but also science, since much scientific research these days is done by means of mathematics, the subjects of research being too tiny (atomic) or too huge (galactic) for human instruments to do the job. Scientists take advantage of the remarkable power of mathematics to describe the physical world.
Jehovah's Witnesses are known for the offer of a free home Bible study. Sometimes people agree to it even though they doubt that the Bible is what it claims to be. But they do as the mathematicians. They suspend their doubt on its authenticity; it can always reinstated later. Having done so, the person (ideally) comes to appreciate the Bible is, not an incoherent hash as he may have once supposed, but a book that makes a lot of sense, a book in which loose ends are tied up, and in which all verses contribute towards a unified theme. Important questions of life are convincingly answered. What happens when we die? Why do we grow old and die? Why does God permit evil and suffering? What is the meaning of today's worldwide chaos? What is God's purpose with regard to the earth, with regard to humanity? Satisfied on these points, our seeker revisits his original assumption about Bible authority and finds it not so compelling as he once imagined.
You might liken it to how you felt last time you completed a jig saw puzzle. There is the completed picture. Holes are filled in. No pieces left over. All is well. Should someone come along and suggest that your result is merely your interpretation of the data, it is hard for you to take him seriously, especially since his puzzle is still in the box. And when some learned puzzologist declares that the puzzle can't be solved and that trying is a waste of time, same reaction on your part. What a surprise when everyone accepts his view! You just shake your head in dismay. You look back at your completed puzzle. Yes, there it is. And yet people will not attempt the puzzle, although the invitation and path to go about it could not be easier, because the puzzologist says "no." Instead, they gobble up the puzzologist's books on the nature of the puzzle pieces and the reasons they're nonsense!
Yes, temporarily suspending doubt, so as to make an investigation, can lead to good results. In my own case, it played out well.
When I first came across the ideas of Jehovah's Witnesses in my college years, I was floored to think I had found people who actually believed in Adam and Eve! They didn't look stupid - well, maybe a few of them, but in no greater proportion than greater society. Yet all my life I had believed that only the most ignorant of the rednecks rejected evolution. A fellow from the Kingdom Hall lent me a book on the subject, now out of print, replaced by a superior version. I didn't like it. It seemed poorly written and it took some cheap shots. But everything else I was learning made much sense, so I decided to shelve the matter for the time being. Later I was able to resolve it. The evidence favoring evolution is nowhere near as compelling as its advocates would have one believe, but we are emotionally conditioned to think a certain way, and are slow to change, regardless of the evidence.
Call it the noble-minded model, neither closed-minded nor gullible.
"Now the latter were more noble-minded than those in Thessalonica [where the disciples were run out of town!], for they received the word with the greatest eagerness of mind, carefully examining the Scriptures daily as to whether these things were so." Acts 17:11