of the exosphere but outside the lower boundary. By way of comparison, the International Space Station maintains an orbit with an altitude of about 386 km (240 mi) above the earth. Revelation 21:22 The Book of Revelation was composed during the end of the 1st century AD near the end of Domitian’s reign (A.D. 96), or some date it earlier during the later end of the reign of Emperor Nero Domitius (54 to 68 CE). The work is addressed to the "seven churches that are in Asia" (1:4). Revelation is normally broken into three sections: the prologue (1:1-3:22), the visions (4:1-22:5), and the epilogue (22:6-20). This study is principally concerned with chapter 21. The author of Revelation was both a Jew by birth and a believing Christian. For the author and the addressees of Revelation, they are searching for the Lord to vindicate them and judge the "inhabitants of the earth," for their suffering (6:10). The fall of Jerusalem coupled with the Neronian persecutions form the tension within the subtext of Revelation. Throughout Revelation, several references to the Temple are made . This Temple appears to be of heavenly origin. When the eschaton arrives in , the reader expects the temple to come down from heaven with the New Jerusalem. Revelation 21 even contains typical New Jerusalem terminology that accompanies a restored Temple. Specific measurements are given for the new city (Ezekiel 40–48, 4Q554), and the city is built with gold, sapphires, and emeralds (Isaiah, Tobit). In addition, 21:21 references the "twelve gates." Revelation maintains another typical aspect of New Jerusalem tradition – the reunification of the twelve tribes of Israel (Ezekiel 48:33-34, 4Q554). Verse 22 marks a sudden and remarkable shift in New Jerusalem apocalyptic rhetoric: "I saw no temple in the city, for its temple is the Lord God Almighty and the Lamb." Following with the tradition of 3 Baruch and 4 Sibylline Oracles, Revelation foresees an eschaton without the Temple. Why has the Revelation suddenly denied an eschatological Temple? Verse 23 sheds light on this disparity. Verse 23 proclaims, "And the city has no need of sun or moon to shine on it, for the glory of God is the light, and its lamp is the lamb." For the author of Revelation, there is no need for a Temple because the Lord will be the New Jerusalem's eternal light and Jesus (the lamb) will be its lamp.