The article basically says that you have to read the Bible to understand why you think the way you do about anything because you live in a country with a history of having a majority-Christian population. I disagree. Most people's ethical frameworks are very simple and are usually just least-harm principles with a little window dressing. And insofar as they aren't, they are usually not particularly compatible with secular society. For my part I don't see the need to give special attention to a particular ethical text just because so many other people have for so long.