All Israel Will Be Saved

When scripture talks about all of Israel will be saved, does that mean every ethnic Jewish person throughout history? That's how some dispensationalists interpret it. They say the phrase is talking about a very specific time period. And that is the beginning of the morning of kingdom. So now you look at Israel and everyone in Israel is a Christian or a follower of God. Okay. Now the believers enter into the millennium. The unbelievers are all destroyed by God. But they're not raised again till after the millennium is over.