Hi there!I think what he means is this: what Israel was to God in the Old Testament — a people he called His, now We(the Church) today are to God what Israel used to be to God, we can be called the true Israel of God, because now WE are His people.
Now, it has nothing to do with the physical, has nothing to do with being a Jew vs. a Gentile. Israel was a physical kingdom. But the kingdom of God, the new kingdom that Jesus came proclaiming, this is a spiritual kingdom. Jesus wanted to fill it with people of faith. He isn’t worried about physical things like nationalities or race. He simply wants to live among a people that will actually truly love him and obey him. Israel struggled with loving and obeying him despite him being physically manifest in the Sinai desert, and God wanted better, so he decided to make Faith the thing that was required to enter his kingdom.
Satan can do all he wants down here on earth to the physical kingdoms present, but a spiritual kingdom? Never before has happened, and neither does Satan have any power over it. That’s why it’s so important for us to want to enter into that kingdom.
It has MUCH to do with the physical. The prophets (over and over and over again) promise our inheritance in the PHYSICAL LAND.
Dt 30:1-8 is NOT yet fulfilled, for example.
WE share in the PHYSICAL land inheritance (Mt.5:5;Gal.3:29;Dt.30:1-8).
"He isn't worried about physical things like nationalities..."
To the contrary, Israel is a NATION before God forever (Jer.31:36). And WE are Israelites (Jer.31:31;Heb.8:8).
We are included in the SAME Israelites of the entire Bible, with the SAME prophetic future.
Jesus will return PHYSICALLY to set up a PHYSICAL kingdom, centered in Israel, as capitol of the world, with ALL nations servings us.
And any nation that opposes us will be destroyed.
We will be uniquely blessed above all other nations.
The nations will bring their treasure to us Israelites.
This is OUR future in the PHYSICAL earth in the future.
WE are fellow heirs in the land-inheritance.
Let's not forget the physical. It's our future and our hope and our eternal inheritance!