Job 15:2

Should a wise man -Referring to Job, and to his claims to be esteemed wise; seeJob 12:3;Job 13:2,Job 13:6. The argument of Eliphaz here is, that the sentiments which Job had advanced were a sufficient refutation of his pretensions to wisdom. A wise man would not be guilty of “mere talk,” or of using language that conveyed no ideas. Utter -literally, answer. It refers to the replies which Job had made to the arguments of his friends. Vain knowledge -Margin, “Knowledge of wind.” So the Hebrew; seeJob 6:26;Job 7:7. The “wind” is used to denote what is unsubstantial, vain, changing. Here it is used as an emblem of remarks which were vain, empty, and irrelevant.