Yehweh failed to scrutinize his omniscience, and thus allowed Job to suffer. Yet Job was the one who gained in the end- the bet between God and the devil had an unforeseen consequence: Job, by standing his ground, gained a special insight into God's being. Job demanded to know why the bad things were happening to him- God claimed a divine right or authority to withhold the information. God never needs to reveal his ways to Man.
Here, we encounter the non-rational aspect- ultimate truth comes through an emotional knowing, or intuition. The 'numinous' terrifying mystery and awe is felt; not rationally explained.
God exercised his divine prerogative, and Job 'saw' the reason why.