So you continue to insist, even though John states clearly the holy Jerusalem is descending OUT of heaven, that it is actually descending IN to heaven?
The way I understand it, New Jerusalem is the Church. It is spiritual and in heaven (like a headquarters, if you will;) but if you are a Christian, it also exists within you:
"And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God." (Rev 21:3 KJV)
One thing for certain: if it was literal, and it did descend down from heaven to the earth, it would look something like this in size:
Philip