Unquenchable

Whose fan is in his hand,
and he will throughly purge his floor,
and gather his wheat into the garner;
but he will burn up the chaff with unquenchable fire.
Matthew 3:12 KJV

And if thy hand offend thee,
cut it off:
it is better for thee to enter into life maimed,
than having two hands to go into hell,
into the fire that never shall be quenched:
Mark 9:43 KJV

Whose fan is in his hand,
and he will throughly purge his floor,
and will gather the wheat into his garner;
but the chaff he will burn with fire unquenchable.
Luke 3:17 KJV