'Unquenchable' in the Bible

And if thy hand serve as a snare to thee, cut it off: it is better for thee to enter into life maimed, than having thy two hands to go away into hell, into the fire unquenchable;

And if thy foot serve as a snare to thee, cut it off: it is better for thee to enter into life lame, than having thy two feet to be cast into hell, into the fire unquenchable;