'Mockers' in the Bible

Are there not mockers with me? and doth not mine eye continue in their provocation?

With hypocritical mockers in feasts, they gnashed upon me with their teeth.

Now therefore be ye not mockers, lest your bands be made strong: for I have heard from the Lord GOD of hosts a consumption, even determined upon the whole earth.

I sat not in the assembly of the mockers, nor rejoiced; I sat alone because of thy hand: for thou hast filled me with indignation.