Job 36:26 is such a striking statement in just about every translation. Some simply say that we do not know God. Others opt to render it in terms of our not understanding God.
A recent post on Jeff Hood’s blog connected the verse to Paul Tillich’s idea of the “God beyond God.”
By definition, a God that your mind can grasp doesn’t deserve the capital “G.” And therefore arrogant and dogmatic claims to comprehension are incompatible with authentic religious faith.
For a recent book that explores this theme in more detail, see Madhuri Yadlapati’s Against Dogmatism.