God displays His power through His creation, Leviathan.
Job repents (of saying God wronged him?).
God tells Job's friends to repent to Job. Job was right and they were wrong.
God restores Job's fortune and family.
How is this about Jesus?
Job is a pre-quel to Christ. He is unjustly afflicted, maintains His righteousness before God in the face of persecutors (leaders and nation of Israel). He becomes the mediator for those people, and God blesses him abundantly.
Sins this passage points to:
Admit it to others when you're wrong and when you wrong them.
Forgive others when they hurt you and come repent.
Use your wealth to bless your children.