FAITH, n. Belief without evidence in what is told by one who speaks without knowledge of things without parallel.

Ambrose Bierce (1842-1914?) American writer and journalist

“Faith,” The Cynic’s Word Book (1906)
    (Source)

Included in The Devil's Dictionary (1911). Originally published in the "Devil's Dictionary" column in the San Francisco Wasp (1884-06-07).