All of that is to say that the Lord is not so finished with Israel that He ha cast her aside permanently. Replacement theology, which is strong out there among some evangelicals, is a doctrine from the pits of Hell. The future of the body of Christ is to dwell in Heavenly places, not the new earth nor the New Jerusalem. The New Jerusalem will be populated ONLY by national Israel as the center for rule over the new earth.
For now, yes. Both Gentiles are grafted into the vine, which is Christ, and the Jews will one day be grafted back into the same vine. Nowhere does it say that the Jewish branches lose their distinctiveness as Jewish branches, just as the Gentile branches don't lose theirs. However, in the economy of Christ, as a whole, those distinctives are not of any matter as the focus is upon Christ above all else, with His being the Source of ALL our salvation, Jews and Gentiles.
MM
Where do you get the idea that the Gentile church's destiny is off-planet, but the Jewish destiny is on-planet. The saints return to earth with Christ.
Rev. 19:14And the armies which were in heaven followed him upon white horses, clothed in fine linen, white and clean.
The saints reign with him for 1000 years over the nations with a rod of iron.
Rev. 20:4¶And I saw thrones, and they sat upon them, and judgment was given unto them: and I saw the souls of them that were beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received his mark upon their foreheads, or in their hands; and they lived and reigned with Christ a thousand years.
5But the rest of the dead lived not again until the thousand years were finished. This is the first resurrection.
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Blessed and holy is he that hath part in the first resurrection: on such the second death hath no power, but they shall be priests of God and of Christ, and shall reign with him a thousand years.
All saints take part in the first resurrection. All saints therefore reing with Him for 1000 years, and He is reigningbon earth.
Jewish saints might have the centre of their communal reign in what is geographically delineated in Ezekiel as an enlarged Israel. But there is still the rest of the planet to manage, which Gentile saints could be doing, on earth. Russian saints ruling Russia? NZ saints ruling New Zealand, etc.? Where does scripture say gentile saints stay off-planet. The national distinctives can continue with all saints reigning on earth with Christ.
Jesus told the twelve apostles they would sit on thrones judging the twelve tribes of Israel.
Matthew 19:28 And Jesus said unto them, Verily I say unto you, That ye which have followed me, in the regeneration when the Son of man shall sit in the throne of his glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel.
Who is judging the Gentiles on the rest of the planet during the 1000 year reign? I expect it will be Gentile saints.
Even after the 1000 years, in the new heaven and earth, Gentile saints are living on-planet.
Rev. 21. 14¶And the wall of the city had twelve foundations, and in them the names of the twelve apostles of the Lamb.
Rev. 21:23And the city had no need of the sun, neither of the moon, to shine in it: for the glory of God did lighten it, and the Lamb is the light thereof.
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And the nations of them which are saved shall walk in the light of it: and
the kings of the earth do bring their glory and honour into it.
Who are these nations of the that are saved, these kings of the earth, if not gentile saints on earth? Reigning over the Gentile nations on earth?
Rev. 20:27And there shall in no wise enter into it any thing that defileth, neither whatsoever worketh abomination, or maketh a lie:
but they which are written in the Lamb's book of life.