What did Job say that warranted God’s rebuke?

Pastor Mike’s Answer (edited)

Job responded admirably at first, blessing God after devastating loss. Beginning in chapter 3, however, his suffering led him to curse the day of his birth and increasingly demand an opportunity to put God on trial and establish his own innocence.

Job’s friends wrongly assumed that his suffering proved secret wickedness, but Job also went too far in exonerating himself and questioning God’s governance. When God finally answered in chapters 38–41, Job recognized that he had spoken beyond his knowledge, covered his mouth, and repented in dust and ashes.

Job’s endurance was real but imperfect. God continued to favor him, accepted his intercession for his friends, and restored him. James 5 rightly commends Job’s steadfastness without implying that every word he spoke during his anguish was correct.