Passage
And the building of the wall of it was of jasper: and the city was pure gold, like unto clear glass.
And the building of the wall of it was of jasper: and the city was pure gold, like unto clear glass.
Revelation 21:16 And the city lieth foursquare, and the length is as large as the breadth: and he measured the city with the reed, twelve thousand furlongs. The length and the breadth and the height of it are equal.
Revelation 21:17 And he measured the wall thereof, an hundred and forty and four cubits, according to the measure of a man, that is, of the angel.
Revelation 21:18 And the building of the wall of it was of jasper: and the city was pure gold, like unto clear glass.
Revelation 21:19 And the foundations of the wall of the city were garnished with all manner of precious stones. The first foundation was jasper; the second, sapphire; the third, a chalcedony; the fourth, an emerald;
Revelation 21:20 The fifth, sardonyx; the sixth, sardius; the seventh, chrysolyte; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprasus; the eleventh, a jacinth; the twelfth, an amethyst.
The verse centers on "building", "wall", "jasper", "city", "pure", "gold", "like", and "clear". It is saying that the verse draws attention to "building" and "wall", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 17's "And he measured the wall thereof an..." into verse 19's "And the foundations of the wall of...", so "building" and "wall" belong inside that flow. In Revelation context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "building" and "wall" with trust shaped by these words, not by a vague optimism outside the passage.