Revelation 21:9-14 English Standard Version (ESV)
The New Jerusalem
9 Then came one of the seven angels who had the seven bowls full of the seven last plagues and spoke to me, saying, “Come, I will show you the Bride, the wife of the Lamb.” 10 And he carried me away in the Spirit to a great, high mountain, and showed me the holy city Jerusalem coming down out of heaven from God, 11 having the glory of God, its radiance like a most rare jewel, like a jasper, clear as crystal. 12 It had a great, high wall, with twelve gates, and at the gates twelve angels, and on the gates the names of the twelve tribes of the sons of Israel were inscribed— 13 on the east three gates, on the north three gates, on the south three gates, and on the west three gates. 14 And the wall of the city had twelve foundations, and on them were the twelve names of the twelve apostles of the Lamb.
Revelation 21:21-27 English Standard Version (ESV)
21 And the twelve gates were twelve pearls, each of the gates made of a single pearl, and the street of the city was pure gold, like transparent glass.
22 And I saw no temple in the city, for its temple is the Lord God the Almighty and the Lamb. 23 And the city has no need of sun or moon to shine on it, for the glory of God gives it light, and its lamp is the Lamb. 24 By its light will the nations walk, and the kings of the earth will bring their glory into it, 25 and its gates will never be shut by day—and there will be no night there. 26 They will bring into it the glory and the honor of the nations. 27 But nothing unclean will ever enter it, nor anyone who does what is detestable or false, but only those who are written in the Lamb's book of life.