One of my favorite theological writers is Spiros Zohiades. He is an expert on ancient Greek, and he has written quite of few books going through the NT with emphasis on translation, and a lot of commentaries.
He wrote a book called “Life after death.” It’s very interesting, quite intricate. For instance, I did not understand the differences between hell and hadees.
Well, now that you brought it up: What is the difference?
Regards,