How do we sift through all these claims? How do people know what to think about relationships, morality, God, the origins of the universe, and many other important questions? To answer such questions, people need some sort of norm, standard, or criteria to which they can appeal. In other words, we need an ultimate authority. Of course, everyone has some sort of ultimate norm to which they appeal, whether or not they are aware of what their norm happens to be. Some people appeal to reason and logic to adjudicate competing truth claims. Others appeal to sense experience. Still others refer to themselves and their own subjective sense of things. Although there is some truth in each of these approaches, Christians have historically rejected all of them as the ultimate standard for knowledge. Instead, God’s people have universally affirmed that there is only one thing that can legitimately function as the supreme standard: God’s Word. There can be no higher authority than God Himself.