Matthew 13:50 KJV
And shall cast them into the furnace of fire: there shall be wailing and gnashing of teeth.
Matthew 13:50, King James Version
In context
49 So shall it be at the end of the world: the angels shall come forth, and sever the wicked from among the just,
50 And shall cast them into the furnace of fire: there shall be wailing and gnashing of teeth.
51 Jesus saith unto them, Have ye understood all these things? They say unto him, Yea, Lord.