21:12 twelve gates. The description of the glorious holy city, the new Jerusalem, is too detailed to admit of anything but literal interpretation, though there have been many efforts to try to spiritualize it. There is every reason to believe that John is describing exactly what he saw, and that God means exactly what He says (note the warning in Revelation 22:18-19). In other words, the holy city is a literal city on a literal earth, with dimensions and descriptions exactly as recorded.
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