And he said to me: It is done. I am Alpha and Omega; the beginning and the end. To him that thirsteth, I will give of the fountain of the water of life, freely... And there came one of the seven angels, who had the vials full of the seven last plagues, and spoke with me, saying: Come, and I will shew thee the bride, the wife of the Lamb. And he took me up in spirit to a great and high mountain: and he shewed me the holy city Jerusalem coming down out of heaven from God, Having the glory of God, and the light thereof was like to a precious stone, as to the jasper stone, even as crystal. And it had a wall great and high, having twelve gates, and in the gates twelve angels, and names written thereon, which are the names of the twelve tribes of the children of Israel... And he that spoke with me, had a measure of a reed of gold, to measure the city and the gates thereof, and the wall. And the city lieth in a foursquare, and the length thereof is as great as the breadth: and he measured the city with the golden reed for twelve thousand furlongs, and the length and the height and the breadth thereof are equal. And he measured the wall thereof an hundred and forty-four cubits, the measure of a man, which is of an angel.
Revelation 21:6, 9-17