Biblical theology is that discipline which sets forth the message of the books of the Bible in their historical setting. Biblical theology is primarily a descriptive discipline. It is not initially concerned with the final meaning of the teachings of the Bible or their relevance for today. This is the task of systematic theology. Biblical theology has the task of expounding the theology found in the Bible in its own historical setting, and its own terms, categories, and thought forms
George E. Ladd. A Theology of the New Testament (20).