The twelve gates were twelve pearls. Each one of the gates was made of one pearl. The street of the city was pure gold, like transparent glass.
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. (d) By street, he means the broadest place of the city.
We have already considered the introduction to the vision of the new Jerusalem in a more general idea of the heavenly state; we now come to the vision itself, where observe, I. The person that opened the vision to the apostle - one of the seven angels, that had the seven vials full of the seven last plagues, Rev 21:9.
Commenting on Revelation 21:9-27
Verse 21. And the twelve gates. . Were twelve pearls. . Every several gate was of one pearl. Each gate. Of course, this is not to be understood literally. The idea is that of ornament and beauty, and nothing could give a more striking view of the magnificence of the future abode of the saints. And the street of the city was pure gold.