Is Scripture really our ultimate authority? Most Christians answer this question by simply saying, "The Bible is my final authority." But, as we explain here, such a view forgets that there is a human being between us and the Bible, which is why there are a multitude of interpretations of the Bible that people live by. Reformed theologians in particularly have claimed that a "testimony of the Spirit," or some sort of an additional revelation of the Spirit, confirms to us what is true. But, again, we can demonstrate that there is no biblical or practical support for this. Accordingly, we are back to our God-given reason and the right and responsibility of private judgment as our ultimate subjective authority by which we live by. Postmoderns are right, then, to assert that our own reason is the god we live by. But they are wrong to ignore that our ultimate objective authority is God, Who our reasoning will be judged by.