Job 40:6 (ESV)

6 Then the LORD answered Job out of the whirlwind and said:

Job’s earlier accusations are still hanging in the air: God is an unjust ruler and has dealt unjustly with Job. Job has not yet recanted and repented of these statements. Therefore, God speaks again, not to crush Job but to instruct and convince him. God again shows his majesty by speaking out of the storm.