If they; the righteous, spoken of Job 35:7, opposed to the hypocrites here following, Job 35:13; for even good men may sometimes be disobedient to Divine admonitions, and may suffer deeply, yea, even death itself, for their folly: see 1 Corinthians 11:30. Without knowledge; in or for their ignorance, or inadvertency, or folly. Or, because they are without knowledge; because they are foolish, or brutish, and will not learn the lessons which God so plainly teacheth them.
Related Commentaries of Job 36:12
Job 36:12
12 But if they obey not, they shall perishc by the sword, and they shall die without knowledge.