Revelation 21:9-16

Then one of the seven angels who had the seven bowls filled with the seven final plagues came and spoke with me, saying, “Come here, I will show you the bride, the wife of the Lamb.” And he carried me away in the Spirit to a vast and lofty mountain, and showed me the holy (sanctified) city of Jerusalem coming down out of heaven from God, [Ezek 40:2] having God’s glory [filled with His radiant light]. The brilliance of it resembled a rare and very precious jewel, like jasper, shining and clear as crystal. It had a massive and high wall, with twelve [large] gates, and at the gates [were stationed] twelve angels; and on the gates the names of the twelve tribes of the sons of Israel were written. [Ex 28:21; Ezek 48:30-34] On the east side [there were] three gates, on the north three gates, on the south three gates, and on the west three gates. And the wall of the city had twelve foundation stones, and on them the twelve names of the twelve apostles of the Lamb (Christ). The one who was speaking with me had a gold measuring rod to measure the city, and its gates and its wall. The city is laid out as a square, its length being the same as its width; and he measured the city with his rod—twelve thousand stadia (about 1,400 miles); its length and width and height are equal.