Charles Ellicott Commentary Job 16:3

"Shall vain words have an end? Or what provoketh thee that thou answerest?" — Job 16:3 (ASV)

Shall vain words have an end? —The English idiom rather requires, “Shall not vain words have an end? for if not, what emboldens or provokes you that you answer?” Eliphaz had contributed nothing to the discussion in his last reply; he had simply reiterated what had been said before.