'Holy City' in the Bible

But as for the court which is outside the sanctuary, pass it over. Do not measure it; for it has been given to the Gentiles, and for forty-two months they will trample the holy city under foot.

And I saw the holy city, the new Jerusalem, coming down out of Heaven from God and made ready like a bride attired to meet her husband.

So in the Spirit he carried me to the top of a vast, lofty mountain, and showed me the holy city, Jerusalem, coming down out of Heaven from God,

and that if any one takes away from the words of the book of this prophecy, God will take from him his share in the Tree of Life and in the holy city--the things described in this book.