Job 5:12 - Matthew Poole's English Annotations on the Holy Bible

Of the crafty; such as are cunning to work evil, and to cover it with fair pretences, as hypocrites use to do, and as Job's friends charged him with doing: God breaks the hopes and designs of such men; as he hath now blasted thy expectation, and taken away thy outward happiness, which was the thing thou didst design in taking up the profession of religion. Their enterprise; or, any thing; or, what is solid or substantial; or, wisdom, i.e. their wise counsel or crafty design. They cannot execute their cunning contrivances.