For that we need the Church. No where does St. Paul, or any other Biblical writer, tell us that these particular 27 books are God ' s inspired Word and should be included in the Christian Bible. Because the Bible does not tell us. For that we need the Church. That was true 2,000 years ago, even when Christians spoke the ancient languages of the Bible and lived in the same milieu in which it was written.
Today understanding what the Bible is teaching is even more difficult.
Today we must rely upon the accuracy of various translations. More than that, the passage of almost 20 centuries, and advances in science and technology, have removed us from many of the everyday experiences and perspectives of the first Christians. How much more difficult it is for us today to understand the Bible correctly. For that we need the Church. It is helpful to remember that Jesus never wrote the Bible, or any other book, to guide us.