Adam Clarke on Job 34:5

Job hath said, I am righteous - Job had certainly said the words attributed to him by Elihu, particularly in Job 27:2, etc., but it was in vindication of his aspersed character that he had asserted his own righteousness, and in a different sense to that in which Elihu appears to take it up. He asserted that he was righteous quoad the charges his friends had brought against him. And he never intimated that he had at all times a pure heart, and had never transgressed the laws of his Maker. It is true also that he said, God hath taken away my judgment; but he most obviously does not mean to charge God with injustice, but to show that he had dealt with him in a way wholly mysterious, and not according to the ordinary dispensations of his providence; and that he did not interpose in his behalf, while his friends were overwhelming him with obloquy and reproach.