He would bring all of Israel back to the land promised them which is happening today
I think Hebrews 11:8-16 would be helpful to you in this regard.
And so it shall be when that heavenly Jerusalem comes down from heaven to the earthly Jerusalem.
Revelation 21:21 And I John saw the holy city, new Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband. 22 And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God.
As it was foretold long ago.Ezekiel 48:35 "The distance all around will be 18,000 cubits. "And the name of the city from that time on will be: the Lord is there."
After the tribulation God will once more be a God to the "house of Israel".
Hebrews 8:10 For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people:
So if you are an Israelite when are you moving to Israel?
Jeremiah 32:37 I will surely gather them from all the lands where I banish them in my furious anger and great wrath; I will bring them back to this place and let them live in safety. 38 They will be my people, and I will be their God.
What? He hasn't brought you back to the land of Israel? Hmmm, you must not be of the nation of Israel.
And that will be an eternal covenant He makes with Israel at that time.
Ezekiel 16:60 Yet I will remember the covenant I made with you in the days of your youth, and I will establish an everlasting covenant with you.