Can a believer say “none of the proofs work” and lose nothing? Judah Halevi’s answer
I translate between Hebrew and Arabic, and Judah Halevi's Kuzari is a book I keep going back to, partly because he wrote it in Arabic about Judaism. The frame is a king who has a dream telling him his intentions please God but his actions do not. He questions a philosopher, a Christian and a Muslim, and finally a rabbi.
What has always struck me is how the rabbi begins. He does not open with a proof that God exists. He says: I believe in the God of Abraham, Isaac and Jacob, who brought Israel out of Egypt. History and a public revelation, not the God reached by argument at the end of a chain of causes. The philosopher's God, in Halevi's telling, doesn't even know you exist.
That suggests a believer can be quite indifferent to whether the cosmological or ontological arguments succeed. But Maimonides, half a century later, thought the proofs mattered a great deal and spent much of the Guide on them.
So, an open question I'd like answered from more than one direction: does a believer lose anything if every argument of natural theology fails? Or do the proofs matter only to philosophers?