Since [Eliphaz] had said that [Job] had sinned not mildly or, so to speak, with feeble strength but greatly and with much force, he now fervently invokes revenge against him, so that it may appear that the crime and the revenge are weighed for him at the same time. “And a sudden terror overwhelms you.” Another version of the text reads, “a sudden force.”“And you thought that you would have not seen the darkness.” You also added this crime to your iniquities—the fact that you believed that revenge would have not followed. If you had thought about it, it would have turned you from the dangerous ways of your actions or frightened you less by being already foreseen.
Source: EXPOSITION ON THE BOOK OF JOB 22:10-11