Revelation 21:21 in the King James Version of the Bible describes the magnificence and perfection of the New Jerusalem, the holy city, and the symbolism associated with it. The verse reads, "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."

This beautiful and vivid imagery of the New Jerusalem speaks to the future promise of a perfect and glorious dwelling place for the redeemed. The use of precious materials like pearls and gold symbolizes the richness and splendor of this heavenly city. The number twelve is also significant, representing completeness and divine authority, as seen in the twelve tribes of Israel and the twelve apostles.

In a broader context, the Book of Revelation is the final book of the New Testament and is considered to be apocalyptic literature. It is attributed to the apostle John and is filled with vivid and sometimes perplexing visions that depict the final battle between good and evil and the ultimate triumph of God. This particular verse comes from the section of Revelation that describes the vision of the new heaven and the new earth, as well as the New Jerusalem descending from heaven.

One of the central themes of Revelation 21:21 is the contrast between the earthly and the heavenly. The imagery of the city being made of pure gold and adorned with pearls highlights the stark difference between the temporary and corruptible nature of earthly treasures and the eternal and incorruptible nature of the treasures of heaven. The verse challenges the reader to consider where their true treasures lie and to aspire to the heavenly rather than the earthly.

Furthermore, the use of pearls and gold in this verse carries layers of symbolism. Pearls are often associated with purity, beauty, and wisdom, and they are precious and valuable. In biblical times, pearls were highly prized and considered a symbol of great wealth. The fact that each gate is made of a single pearl further emphasizes their value and uniqueness. This can be seen as a representation of the exclusivity and preciousness of the entrance into the New Jerusalem, which is only accessible to those who are redeemed by faith in Jesus Christ and have lived a life of righteousness.

Gold, similarly, is often associated with purity, value, and preciousness. In this verse, the use of pure gold as transparent glass underscores the flawlessness and brilliance of the city. Gold is also a symbol of divine wealth and majesty, and its use here suggests the exalted and regal nature of the New Jerusalem. This speaks to the idea of the heavenly city being a place of unrivaled beauty and majesty, surpassing anything that can be found on earth.

Ultimately, Revelation 21:21 serves as a powerful reminder of the promise of a new and perfect existence for believers. It encourages them to set their hearts and minds on the things above, rather than on the things of this world. The imagery of the New Jerusalem is meant to inspire hope and to remind Christians that the suffering and hardship of this life are temporary, and that a glorious and eternal future awaits them. This verse is a source of comfort and encouragement for believers, reminding them of the ultimate victory that is to come.