Elihu was the only friend of Job’s God did not rebuke. When he finished speaking God immediately spoke to Job and did not give him a chance to refute what the last speaker and said (Job 32:1-38:1). Elihu rebukes Job for accusing God of wrong doing and injustice (Job 33:8-11; 34:5-9). He points out that all are unrighteous. None of us can rightfully say we are without fault.
He also reminds Job and his companions, “If he (God) should set his heart on it, if he should gather to himself his Spirit and his breath, all flesh would perish together and man would return to dust” (Job 34:14-15). None of us are worthy of life because disobedience leads to death and we have all disobeyed.
The point is God is about his righteous business even when we cannot see how the pieces all fit together. His justice is not based on our understanding. We easily quote but too soon forget that his ways are higher than our ways and his thoughts higher than our thoughts (Isaiah 55:9-11). He teaches us to trust him when we cannot see our way (Isaiah 45:3).
We are comforted even in our grief (1 Thessalonians 4:13-18).
