Marcus J. Borg said this quote
“ But Christian illiteracy is only the first part of the crisis. Even more seriously, even for those who think they speak “Christian” fluently, the faith itself is often misunderstood and distorted by many to whom it is seemingly very familiar. They think they are speaking the language as it has always been understood, but what they mean by the words and concepts is so different from what these things have meant historically, that they would have trouble communicating with the very authors of the past they honor. ”