His experience is not informative of anything under Grace.   

More people have been misled by improper treatment of this book than any other in the Old Testament.   

The book of Job is not the Truth about anything.   

The book of Job is simply an expression of how man, apart from spiritual revelation of the Truth, comes up with theories, explanations and opinions that blaspheme the Holy Spirit (accuse Him of being anything other than good, loving and giving).   

I pronounce `j o b` as `j-ah-b` rather than `j-oh-b` as it has done a job on many people`s faith turning it into fatalism.   (See Calvinism)

One of Job's most famous statements was: "though he slay me yet I will serve him".   

Think about this.   
   → how could he serve Him if he was dead?   
   → what does is say about God who would slay a good man?   
   → Job comes off as more righteous than God

Job flat out did not know God.   He created the God he believed in from his imagination.   

He is not the Lord of the dead, but the Lord of the living: you therefore do greatly err. Mar 12:27 And that settles that.

Let no man say when he is tempted, I am tempted of the Lord: for the Lord cannot be tempted with evil, neither tempts he any man: Jam 1:13 The Lord does not bring temptation or evil into our lives to test us or to teach us.     He is good in every aspect of His being.      Do not confuse the works of the enemy with Christ.     To do so is blasphemy.      Christ is sovereign but He does not exercise Extreme Sovereignty.     He has given us Free Will.     He has given us dominion.      The trials that we go through are the result of us living in a fallen world in which evil has manifested in the Sin Nature as well as sickness and disease.      The Lord gave dominion to man who turned it over to Satan who is the enemy that steals, kills and destroys.      Christ Jesus won back all the power that He had given to man.      That power and dominion is now in the hands of Christ`s stewards until His return.      We can use that power to make good choices and to bend our will to good things, avoiding that which is evil.