Revelation 21:10-14

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).