Revelation 21:9-14

Then one of the seven angels who had the seven bowls full of the seven last 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 great and high mountain, and showed me the holy city, Jerusalem, coming down out of heaven from God, having the glory of God. Her brilliance was like a very costly stone, as a stone of crystal-clear jasper. It had a great and high wall, with twelve gates, and at the gates twelve angels; and names were written on them, which are the names of the twelve tribes of the sons of Israel. There were three gates on the east and three gates on the north and three gates on the south and three gates on the west. And the wall of the city had twelve foundation stones, and on them were the twelve names of the twelve apostles of the Lamb.