I’d never seen this analysis before. It’s a much better explanation than most, and I do plan to reread Number of the Beast with this in mind.
(And I did catch the anagrams, but apparently I missed the important bits. In my defense, it must be more than twenty years since I’ve read Number of the Beast!)
The nice thing is that this actually makes a lot more sense of the Revelation imagery, if Heinlein was also proposing a narrative structure driven by good and evil, truth and lie parallels.
While you’re at it, please pray for the soul of David Potter, aka “Gharlane of Eddore.” He was one of the great lights of Usenet back in the day, and I always looked forward to his postings.