Adam Clarke on Job 11:3

Should thy lies make men hold their peace? - This is a very severe reproof, and not justified by the occasion.

And when thou mockest - As thou despisest others, shall no man put thee to scorn? Zophar could never think that the solemn and awful manner in which Job spoke could be called bubbling, as some would translate the term לעג laag. He might consider Job's speech as sarcastic and severe, but he could not consider it as nonsense.