Marguerite Galbraith, Sharon’s best friend, raised this interesting question.
Many Evangelicals speculate that the United States will not be part of the Lord’s kingdom since it is not mentioned in prophetic Scripture (or in the Bible, at all).
Revelation 21–22 tells us about the kingdom on the new Earth. Revelation 21:24 says that the nations of the new earth shall walk in the light of the New Jerusalem and that the kings of the nations will bring gifts to Jesus there. But no specific nation is mentioned. Not even Israel is mentioned in those chapters, though the New Jerusalem is, indicating that Israel will be the dominant world power.
Prophetic Scripture tells us about nations that will be in the Millennial kingdom. These include Ethiopia, Libya, and Egypt.
Here is a list of all the countries mentioned in the Bible: Israel, Egypt, Ethiopia, Russia (Rosh, Gog), Italy, Greece, Turkey, Spain, Saudi Arabia, Armenia, Iraq, Crete, Cyprus, France, Iran, India, Jordan, Lebanon, Macedonia, Syria, Sudan, and South Sudan. China might be understood to be the source of the army of 200 million soldiers (Rev 9:16).
Some of those nations are listed as both past and future enemies of Israel.
There is no list of the nations that will be in the Millennium and no indication as to whether all those nations will go on to be part of the new earth.
Here is why it is risky to say that the United States will not be in Jesus’ kingdom: Over 80% of the countries of the world today are not mentioned in the Bible. There are 195 countries today. Between 20 and 35 of those countries are mentioned or alluded to in the Bible. See here for a list of 33 countries in the Bible. That leaves 160+ not mentioned. Here is a short list of major countries and regions not mentioned in the Bible: Canada, the United States, Mexico, all the Central American countries, all the South American countries, Australia, New Zealand, all the Pacific islands, Japan (?), Indonesia, most of the countries of Africa and Asia and Europe.
There are three reasons making it seem logical to conclude that all the nations on Earth at the time of the Rapture will go into the Millennium. First, there will be, from all the Gentile nations, untold millions of babies and children under the age of accountability who will survive the Tribulation. Most likely, every nation will have surviving children. They will go into the Millennium. Second, the sheep (Gentiles) in Matt 25:31-46 will likely include adults from every Gentile nation. Third, every nation has, in the past, had children who died before the age of accountability, as well as adults who came to faith in Christ.
Of course, it is possible that God will eliminate some countries that include children and believers who died or were raptured before the Tribulation. He may eliminate some that have living children and adult believers at the end of the Tribulation. But there is no hint of this in the Bible.
I expect to see not only the United States in Jesus’ kingdom, but also the UAE, Iran, Iraq, North Korea, Russia, Samoa, Tonga, Serbia, Croatia, Kazakhstan, Monaco, San Marino, Qatar, and every other country in our modern world.
I admit this is speculation. But I think it is justified by God’s love for all the people of the world. While some nations might not have millions of believers–even if those from every generation are counted–I think it highly likely that every nation will, since the time of its founding, include a large number of believers.