Have you ever asked yourself, "What, or who, has authority in my life?" It's a very interesting question. There are many layers to the question of authority, including what we mean by the word.
It is equally important to clarify how we are using the term "authoritative", when we think about the Bible. If we think of the Bible's authority as being like a commanding officer, the text presents some problems. Most of the Bible doesn't start with a command, it starts like a lot of stories, "Once upon a time..." This "narrative" style raises questions about what (If anything) makes the Bible authoritative. Generally people see its authority through three lenses:
Its authoritative because it contains timeless truths
Its authoritative because it provides witness to primary events
Its authoritative because it has a timeless function
But, are these really what make the Bible authoritative?