I think the trouble humans have is that we insist on using our finite ability and knowledge as the yardstick of measurement for truth.
What you've really said is that the trouble humans have is insisting on being human.
Meanwhile, you've mentioned an ability within humans that has to do with finding truth, you've classifed that ability as "finite", and you've neglected to name the ability.
I'll do it for you: it's the human ability to reason.
The faculty of reason is that which distinguishes the human from other species, and using that faculty is man's way to find and know truth.
In addition, your use of the word "finite" might be wrong -- humans have a seemingly boundless ability to create ideas, art, literature, etc..
Would you mind explaining why you dislike reason?