Revelation 21:17-18

Revelation 21:17-18. And be measured the wall thereof, an hundred and forty and four cubits, according to the measure of a man, that is, of the angel. And the building of the wall of it was of jasper: and the city was of pure gold. like unto clear glass.

All these joys are without sediment of sin. Gold on earth is a dull thing. You cannot look into it. But the joys of heaven, if compared to gold, must be diaphanous. "Pure gold like unto clear glass" - all the earth taken out of it, from all its earthly grossness quit. The joy of heaven is divine.