'Weeping and Gnashing of Teeth' in the Bible

and shall cast them into a furnace of fire: there shall be weeping and gnashing of teeth.

Then said the king to the servants, Bind his feet and hands, and take him away, and cast him into the darkness, which is without; there shall be weeping and gnashing of teeth.

And will cut him asunder, and give him his portion with the hypocrites: there shall be weeping and gnashing of teeth.

And cast the unprofitable servant into the outer darkness: there shall be weeping and gnashing of teeth.