Prof. Halivni (himself a Holocaust survivor) has devoted a new book to this topic. Alan Nadler reviews the book here.
Perhaps the following quote would not be inappropriate:
Indeed the Book of Job avowedly only answers mystery with mystery. Job is comforted with riddles; but he is comforted. Herein is indeed a type, in the sense of a prophecy, of things speaking with authority. For when he who doubts can only say 'I do not understand,' it is true that he who knows can only reply or repeat 'You do not understand.' And under that rebuke there is always a sudden hope in the heart; and the sense of something that would be worth understanding.
G. K. Chesterton - The Everlasting Man
The riddles of God are more satisfying than the solutions of man