Revelation 21

12 also having a great and high wall, having twelve gates, and at the gates twelve messengers, and names written thereon, which are [those] of the twelve tribes of the sons of Israel— 13 at the east three gates, at the north three gates, at the south three gates, at the west three gates; 14 and the wall of the city had twelve foundations, and on them names of the twelve apostles of the Lamb.