'It is written ..., ' says the believer in a sacred text, and proceeds to justify all manner of terrifying things. Or so runs a popular caricature of religious faith today. Religions that center around a revelation--around a 'good book, ' like the Torah or Gospels or Quran, which is seen as God's word--are widely regarded as irrational and dangerous: as based on outdated science and conducive to illiberal, inhumane moral attitudes. The Good and the...