WOW! JD is totally obtuse! - DDYep.
"tabernacle" = skene NOT naos.
Rev 7:15 naos - Strongs 3485 = a temple, a shrine, that part of the temple where God himself resides.
Only the priest could enter the naos.
Rev 21:3 skene - Strongs 4633 = tent
Omg. And where was the tent that the priest entered? Was it in heaven or was it on earth? Where was the temple IN JERUSALEM where GODS HOUSE was? Was it in Jerusalem, in Israel, on earth AMONG MEN or in heaven?
In both cases, the tent or tabernacle and the temple were on earth among men in the midst of the people. This is exactly where the book of revelation places it as well, hence the crowd, Ochlos, is in the Naos where God resides in the same sense as he always does/has in the bible among his people on earth. They are in the temple because they no longer have priests to represent them on earth and have been made clean and thus are holy and may enter the temple (check Hebrews chapter 7, where paul states there would no more be any priest succession as Christ is said to be the king priest for eternity who will never die).