Revelation 21:15
And he that talked with me had a golden reed to measure the city, and the gates thereof, and the wall thereof.
More from Revelation 21
And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea.
And I John saw the holy city, new Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband.
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.
And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away.
And he that sat upon the throne said, Behold, I make all things new. And he said unto me, Write: for these words are true and faithful.