Introduction to the Book of Job
The book of Job is chiefly remarkable, as I have insisted throughout, for the fact that it does not end in a way that is conventionally satisfactory. Job is not told that his misfortunes were due to his sins or a part of any plan for his improvement. But in the prologue we see Job tormented not because he was the worst of men, but because he was the best. It is the lesson of the whole work that man is most comforted by paradoxes. Here is the very darkest and strangest of the paradoxes; and it is by all human testimony the most reassuring. I need not suggest what high and strange history awaited this paradox of the best man in the worst fortune. I need not say that in the freest and most philosophical sense there is one Old Testament figure who is truly a type; or say what is prefigured in the wounds of Job.
Taken from: http://www.chesterton.org/introduction-to-job/