Revelation 21:18 - Exposition

And the building of the wall of it was of jasper: and the city was pure gold, like unto clear glass; pure glass. The exceeding brightness and purity is the idea contained in both expressions—the light of Revelation 21:11 , which is there associated with jasper and crystal. (On "jasper," see on Revelation 21:11 and Revelation 4:3 .) The whole description is, of course, typical, not literal.