New Jerusalem is the mingling of God with His chosen, redeemed, regenerated, and matured people. The city is this organic union of God and His people. Around the city are the peoples (Rev. 21:3), the nations (Rev. 21:24). These peoples/nations are not New Jerusalem because they, being plural, do not have the oneness of New Jerusalem.
Revelation 21:3 says, “Behold, the tabernacle of God is with men, and He shall tabernacle with them, and they shall be His peoples, and God Himself shall be with them.”
* The “peoples” in this verse will be “the nations” in verse 24. There will be several peoples, and each corporate people will be a nation on the new earth. These nations which will surround the New Jerusalem will be restored, but they will not be regenerated….As the restored and purged nations, they will live outside the New Jerusalem and they will enjoy the common blessings in the new heaven and the new earth.
These common blessings are mentioned in verse 4: “And He shall wipe away every tear from their eyes; and death shall be no more; nor sorrow, nor crying, nor pain—they shall be no more; for the former things have passed away.”
These peoples will be God’s peoples, belonging to Him. However, they are not His sons born of His life. Without this life they cannot participate in the oneness of New Jerusalem.
These peoples enjoy the blessings of the new earth but do not partake of the special blessings in New Jerusalem. For example, the peoples/nations will not eat the fruit of the tree of life (Christ). Their portion will only be the healing of the leaves of the tree of life (Rev. 22:2). They will receive this blessing out of New Jerusalem, but it is far better to partake of Christ as our tree of life both today and in New Jerusalem.