Can Israel be separate from the Church?
Hal
Yes and No
How's that for playing it safe.
Israel is referred to as a land and a people.
Example: (a land) Leviticus 20:2 NIV "Say to the Israelites: 'Any Israelite or any alien living in Israel who gives any of his children to Molech must be put to death. The people of the community are to stone him.
(a people) Exodus 18:25 So Moses chose able men from all Israel and made them leaders over the people [as] officials of thousands, hundreds, fifties, and tens.
The Church is the body of Christ and includes all believers, Jew and Gentile, rich and poor, slave and master. It includes all that inherit the promise made to Abraham, be he son of blood or Spirit. Not all of Abraham's children are believers just as not all Gentiles are not believers. The believers are the Church be they children of Israel or Babylon.
The land of Israel well:
Joel 3: 2 I will gather all the nations and take them to the Valley of Jehoshaphat. I will enter into judgment with them there because of My people, My inheritance Israel. The nations have scattered the Israelites in foreign countries and divided up
My land.