Job 11:6

That he would shew thee the secrets of wisdom— That he would even tell thee to thy face the secrets of thy craftiness; for they are double to thy real worth. Know, therefore, that God exacteth of thee less than thine iniquity. Heath. It is plain that the thing to be discovered was the wickedness of Job, which had hitherto, in the judgment of these friends, been covered by his hypocrisy; and, in truth, there was little reason to lay open the hidden treasures of God's wisdom to demonstrate this. Supposing Job (as they did) to be really a hypocrite, there was no more to do than to strip off the disguise, and his wickedness would at once appear: and this is what Zophar wishes to be done.