'Holy City' in the Bible

And the court which is without the temple cast out, and measure it not; because it has been given up to the nations, and the holy city shall they tread under foot forty-two months.

And I saw the holy city, new Jerusalem, coming down out of the heaven from God, prepared as a bride adorned for her husband.

And he carried me away in the Spirit, and set me on a great and high mountain, and shewed me the holy city, Jerusalem, coming down out of the heaven from God,

And if any one take from the words of the book of this prophecy, God shall take away his part from the tree of life, and out of the holy city, which are written in this book.