I just read Atheodox Jew’s post Why Biblical Scholarship Is Irrelevant and wanted to express my agreement. At some point faith is just that – faith, unprovable belief.
A quick overview of the main points:
– It doesn’t matter who wrote the Tora, even if we could be 100% sure that it was Moshe, we are still required to believe that G-d was somehow involved.
– That they comes from G-d is not the only reason for keeping the commandments, we also keep them because they have value in themselves.
Faith that can be destroyed by the "Documentory Hypothesis" was not worth much to begin with!