L. M. Grant's Commentary on the Bible - Revelation 21:1-27
The New Heaven and New Earth Revelation 20:11 has indicated that at the time of the Great White Throne the earth and the heaven flee away. Now John sees a new heaven and a new earth, and the earth had no more sea. The earth is transformed. It is not a different earth, but a renewed earth, just as a sinner being renewed becomes a new creation in Christ. The sea is typical both of the nations in constant tumult (Revelation 17:15) and of the flesh in its swelling unrest and vanity (Isaiah... read more
Geneva Study Bible - Revelation 21:21
21:21 And the twelve gates [were] twelve pearls; every several gate was of one pearl: and the {d} street of the city [was] pure gold, as it were transparent glass.(d) By street, he means the broadest place of the city. read more