Adam Clarke on Job 35:15

But - because it is not so - Rather, "But now, because he visiteth not in his anger." This is more literal than the versions generally proposed; and the sense of the place appears to be this: Because vengeance is not speedily executed on an evil work, therefore are the hearts of the children of men set in them to do iniquity. This is, in effect, the charge which Elihu brings against Job.