>>It does say hell is place where the fire is NEVER quenched and the worm NEVER dies. “NEVER” sure sounds like time unending to me.<<
The bible, when it comes to describing eternity, is a bit like a man trying to explain “red” to a person that only sees in grayscale. Our understanding is limited.
Also, although a slaughterhouse can exist for a LONG time, as for each animal butchered there, it is a fairly short process.
But if one was only there for a short time, why does the Bible got to pains the emphasize the eternity of Hell itself. Such eternity wouldn’t matter if one was only there a short time. No, the eternity of existence in hell for those who go there is well established by scripture.