But now, because it is not so That is, because Job doth not acknowledge God's justice and his own sins, and wait upon God in a proper way for mercy; he hath visited in his anger God hath laid grievous afflictions upon him, all which appear to be too little to bring Job to a compliance with God's will. Yet he knoweth it not Job is not sufficiently sensible of it, so as to be humbled under God's mighty hand. In great extremity Or, though in great extremity, namely, of afflictions. Though Job hath hitherto been, and still is, exercised with very sore calamities: yet they have not brought him to the knowledge of God and himself. Therefore doth Job open his mouth in vain Hence it is manifest that he pours forth his complaints without any success, and gets no relief by them. He multiplieth words without knowledge Thereby discovering his ignorance of God and of himself.
Related Commentaries of Job 35:15
Job 35:15-16
15 But now, because it is not so, he hath visited in his anger; yet he knoweth it not in great extremity:
16 Therefore doth Job open his mouth in vain; he multiplieth words without knowledge.