Yahweh is the god of Christianity, Judaism, and Islam. All three religions believe God to be the god of Abraham, Isaac, and Jacob.
How does God "save" people? By being ambiguous? Anybody can claim that God did something, are we just suppose to believe he actually did?
ALL religions have prophecies regarding destruction and death. The Abrahamic religions use the EXACT same tactics that every other religion uses. Shouldn't the one true god be different? Instead of communicating through scrolls, getting people to speak on his behalf, and being ambiguous, shouldn't the one true god communicate in such a way that there can be no ambiguity as to what really happened?