Revelation 3:18; Revelation 21:18; Revelation 21:21

18 I counsel thee to buy of me gold tried in the fire, that thou mayest be rich; and white raiment, that thou mayest be clothed, and that the shame of thy nakedness do not appear; and anoint thine eyes with eyesalve, that thou mayest see.

18 And the building of the wall of it was of jasper: and the city was pure gold, like unto clear glass.

21 And the twelve gates were twelve pearls; every several gate was of one pearl: and the street of the city was pure gold, as it were transparent glass.