Very often the book of Psalms is seen as a random collection of individual poems on a variety of topics. This framework assures very little to no awareness exists of a comprehension of the book’s total message, specific emphases, or any flow of the book’s structure and theology. Taking into account the structure of the book of Psalms as a whole makes significant contributions to the interpretive process. In the Introduction these points are expanded upon by Robertson.
Robertson surveys the origin of prophecy in ancient Israel. He first notes the prophets’ self-testimony regarding their origin. The nature of the prophecy is characterized according to the understanding of their origins.
This book provides practice guidelines around preaching. The first chapter focuses on the nature of the sermon (What is a sermon?). The author defines the sermon as the "official, ministerial, public proclamation, explanation, illustration and application of the Word of God written as it reveals Christ to the church and to the world."