Commentaries:
Job's three friends cannot convince him of his unrighteousness, not merely because he is righteous in his own evaluation, but also because their arguments have no effect on him. He seems determined to keep his own opinion of himself in spite of all their reasoning.
Staff
Overcoming (Part 3): Self-Righteousness
Job 32 introduces Elihu, a sixth character in this unfolding drama, the lessons of which are critical to all mankind. He is a much younger man who has listened intently to the arguments flowing back and forth. The context reveals that he is patient but is also incensed at the four men whose arguments are recorded. He clearly perceives that Job's friends' arguments were condemnatory, but had not answered him correctly. He is angry at Job because his arguments claim himself to be more righteous than God. Job's attitude placed himself above God by denying that He has the right to deal with Job as He sees fit.
John W. Ritenbaugh
Job, Self-Righteousness, and Humility