How bout some honesty? I’m well aware of Revelations and 1st & 2nd Peter. I’m well aware of the cube nature of New Jerusalem, as I already quoted scripture. Once again, Isaiah is revealing a new heavens and a new earth and a couple of scriptures later, he talks about who will build and inhabit houses and eat fruit. SPIRITUAL BODIES HAVE NO NEED OF EITHER. There is nothing to misinterpret. You are adding fable to scripture.
Isaiah is not speaking of what the elect do, he is talking about the millennial kingdom, where there are still mortals living on Earth.