No Jew, said Saadiah, should discard the Bible, and form his opinions solely by his own reasoning.

But he might safely endeavor to prove, independently of revelation, the truths which revelation had given.

Faith, said Saadiah again, is the sours absorption of the essence of a truth, which thus becomes part of itself, and will be the motive of conduct whenever the occasion arises.

Thus Saadiah identified reason with faith.

He ridiculed the fear that philosophy leads to scepticism.