English to Spanish Art/Literary Religion A book about the Creation/evolution debate

If the covenant with Abraham was not made; if circumcision and sacrifices were not ordained by Jehovah; if the ‘ten words’ were not written by God’s hand on the stone tables; if Abraham is more or less a mythical hero, such as Theseus; the story of the Deluge a fiction; that of the Fall a legend; and that of the creation the dream of a seer; if all these ***definite and detailed narratives*** of apparently real events have no more value as history than have the stories of the regal period of Rome—what is to be said about the Messianic doctrine, which is so much less clearly enunciated? And what about the authority of the writers of the books of the New Testament, who, on this theory, have not merely accepted flimsy fictions for solid truths, but have built the very foundations of Christian dogma upon legendary quicksands?