Albert Barnes Commentary Job 21:2

"Hear diligently my speech; And let this be your consolations." — Job 21:2 (ASV)

Hear diligently - Hebrew “Hearing hear” - that is, hear attentively. What he was about to say was worthy of their solemn consideration.

And let this be your consolations - That is, “You came to me for the professed purpose of giving me consolation. In that you have wholly failed. You have done nothing to sustain or comfort me; but all that you have said has only tended to exasperate me, and to increase my sorrow. If you will now hear me attentively, I will take that as a consolation, and it will be in the place of what I had a right to expect from you. It will be some comfort if I am permitted to express my sentiments without interruption, and I will accept it as a proof of kindness on your part.”