People that were predestined were the Jews, His chosen people for a specific purpose. But not all Jews were saved. But from the beginning He wanted to set up a plan where everyone could be saved, including the Gentiles. That doesn't mean that all Gentiles will be saved either. It is Calvinism that has twisted this to mean that some have no choice but to be damned, and others had no choice but to be saved.
First, please be informed that I just edited my post for which you made this reply. The original statement "But certainly, the predestination does not suggest anything but that." is incomplete. So I edited it to complete it and now is "But certainly, the predestination does not suggest anything but that leads to heaven."
What you say there may be another view. But the way I look at it, I see that such view is problematic, in that, as you pointed out, not all Jews (ethnic Israel) are saved, while clearly predestination points to being saved. So the contradiction for which I could find no way to be in harmony with the rest of scriptures.
You said, "But from the beginning He wanted to set up a plan where everyone could be saved, including the Gentiles.". That sure sounds as though God had somehow failed concerning the salvation of Israel. Scriptures is clear, that is not the case.
Tong
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