Hmmm...It would take a rather large post to bring out everything the Scriptures have to say about this, but here is just one of many you might consider in this light: 1 Peter 2:4-10.
Verse 9: "But you are a chosen people, a royal priesthood, a holy nation, a people belonging to God, ..."
Was Peter lying, or exagerating? Was he not taught by Jesus while with Him for 3 years or so, and then later for 40 days after the resurrection? And also led by the Holy Spirit to recall all that Jesus had taught him after Pentecost? What about the words of the other writers of the NT? How does one understand them without consideration of of the whole?
I said: The "New Jerusalem" is the whole body of Christians which are the "bride of Christ" mentioned in the book of Revelation: Yeh -- that consists of many nations:
Actually, NO! It consists of God's people found in all nations
So then which of those "nations" will be given the Kingdom of Israel??? France??? India??? Germany??? or a future nation of Israel [Isaiah 66:8] that has been gathered after a 1900 year hiatus from amongst the nations to which they have been driven in fulfillment of the prophecies of all the prophets, who Peter admonished the Church in his last letter to keep in mind.
And where do you find "future nation of Israel" that you say Peter revealed?
Later - have to keep an appointment. Back later on.
How do you reconcile that with all the other verses referring to the Church as composed of "nations", other than to realize that he is referring to the Jewish believers here in his first epistle.
After all, he is quoting Deuteronomy 7:6 which said that the children of Israel would be a "special people to him above all the people who are on the face of the earth."
I Peter was written to the "sojourners", the Jewish believers scattered and being scattered again throughout that area of Asia Minor due to the conflict with Rome in Judea and the ongoing diaspora. In the letter he even tells them to "have your behaviour honest among the nations".[I Peter 2:12]
Count all the places in Scripture where the Church is referred to as a community of "nations" and that's the only way to reconcile those verses with Peter's first epistle. Afterall, Peter was there on the day when Jesus answered the disciples' collective question about when He would "restore again" the Kingdom to Israel", and when Jesus answered it saying that the time for that is in His Father's hands.
And where do you find "future nation of Israel" that you say Peter revealed?
Acts 15:14-17 -- the words of the prophets as it is written.