I recently learned no evil or pain caused is done by God, so I don't understand why God let all that happen to Job just to prove a point.
Who told you this?
"And yet He is wise and brings evil;
he does not call back his words,
but will arise against the house of the evildoers
and against the helpers of those who work iniquity." (Isaiah 31:2)
"And it shall be answered, Because they forsook the LORD God of their fathers, who brought them forth out of the land of Egypt, and laid hold on other gods, and worshiped them, and served them: therefore has he brought all this evil upon them." (2 Chron 7:22)
"But I say to you, Love your enemies and pray for those who persecute you, so that you may be sons of your Father who is in heaven. For he makes his sun rise on the evil and on the good, and sends rain on the just and on the unjust." (Matt 5:44-45)
Honestly, I think we are a little quick to let God "off the hook" for the evils we all endure. (Food for thought: the Hebrew word that is translated "evil" is the same word that is translated "disaster". Most modern translations attribute "evil" to men and "disaster" to God, but the Hebrew makes no such distinction.)
This is the theme that stands out most to me in the book of Job. Job's friends all take turns explaining that Job's problems
must ultimately be his fault. How could God allow so much evil befall an innocent man? No, Job
must have had some secret sin that he wasn't fessing up to.
But Job ferociously defends his own innocence and demands a hearing from God. Now God shows up and tells them all to pipe down, but ultimately Job is vindicated and his "friends" are not. In fact, God elects Job to offer sacrifices on their behalf.
The idea that God would never dream of allowing any of us to have any discomfort, but that we cause our own suffering (whether directly or indirectly) is both thoroughly modern and incredibly ancient. But this idea is repeatedly shot down throughout the Bible. Besides Job and the passages I posted above, the Psalms are full of laments demanding the justice and rescue that God has promised.
Now, please know that I am not bringing this to light to increase your confusion, but simply to point out the wonderful complications of our God.
We can never forget that we have signed on to follow a God that decided to send His own son to die for folks who were willing to kill him. This is no run-of-the-mill God! Just when we think we have Him nicely packed into the mold we choose for Him, He pops right out and surprises us again.