Job 5:14 - Matthew Poole's English Annotations on the Holy Bible

i.e. In plain things they run into gross mistakes and errors, and commonly choose those counsels and courses which are worst for themselves. Darkness oft notes misery, but here ignorance or error, as it is also used Job 12:25, Job 37:19, and elsewhere. Grope, like blind men to find their way, not knowing what to do.