I think that the author is on the right track, but stops just short of an (possibly the) important conclusion. While it is true that the text of the Bible is relatively faithfully translated, discounting minor biases of the translator, many people have changed or popularized convenient interpretations of that same text. For example, I doubt that the Catholic church put a large amount of emphasis on the accusations against King David, especially compared to those that sided with the French Revolution. Of course, if we consider different sects, interpretations vary even more. In practice, every major movement in Europe likely had an interpretation of their own, including the Marxist secularist movement. After all, there's no need to be Christian to draw conclusions about the meaning of the text.