'Holy City' in the Bible

But exclude the courtyard outside the sanctuary. Don’t measure it, because it is given to the nations, and they will trample the holy city for 42 months.

I also saw the Holy City, new Jerusalem, coming down out of heaven from God, prepared like a bride adorned for her husband.

He then carried me away in the Spirit to a great and high mountain and showed me the holy city, Jerusalem, coming down out of heaven from God,

And if anyone takes away from the words of this prophetic book, God will take away his share of the tree of life and the holy city, written in this book.