Hi Abigail, (((( Smiles )))

Yes, JESUS IS THE AUTHOR and FINISHER OF OUR FAITH and Hell's tormenting fire is real!
And what I base how I read it on is not by Screwtape letter's or by Pastor Murray alone though the blotted out he talks about I do in that God can destroy both body and soul in Hell the Bible says it and I believe it as well as the scriptures that speak of ash's, consumed, devoured, burned up and stubble.
God is a consuming fire and on the ashes of it all He will create the new heavens and a new earth. And the former thing's will be passed away. We will not be watching people on fire between a gulf like in the Parable of Lazerus a Parable.
I believe the wicked are eventually obilterated in hellfire.
How long will Hellfire burn?
Some may burn longer then others but no one deserves to burn longer then Satan does.
The age-ending "fire," then, will convert the bodies of all the wicked to ASHES -- including that of Satan the devil which will become ashes under our God's feet as this final age-ending fire will destroy all the wicked, root and branch!
All gone then all made new.
When a person read's Scripture these verse's are in there and our Bible King James or other English versions use words that we may point to that may read alittle differently in the Greek or Hebrew in meaning.
Here's Hope of Israel Ministries.

http://www.hope-of-israel.org/satefate.htm

It say's it here too.
I'm going to look to see if I can copy it with the link doesn't say anything on that page that it can't be copied and shared because you said you don't like to read links.
For me it has to do with Scripture.
It truly does.