Why is it significant that the gates of the New Jerusalem will never be shut?

The New Jerusalem's gates will never be shut, as noted in Revelation 21:25, which symbolizes a perfect state of security and peace where evil can no longer enter. The imagery reflects a stark contrast to earthly cities, which close gates at night to protect from harm. In the eternal kingdom, there will be no threats, fears, or darkness; only the purity of God's presence will remain. This signifies the ultimate fulfillment of God's promises to protect and maintain peace for His people, inviting all who are written in the Lamb's book of life into a forever relationship in His light and glory.