This book is a series of sermons summarizing the books of prophecy in the Old Testament. I intend these sermons to be studied, preached, or used as Bible lessons or for simple reference. The books of prophecy express God's heart for His people, the Jews, and He chose them to be the primary vehicle of His message to mankind, as the initial means of fulfilling God's mission of redemption and His kingdom being established on earth. However, after repeated attempts to call His people back to that mission, God decided not to speak for four hundred years until John the Baptist showed up in Judea. The proclamation of the prophets is also a promise of victory for the people of God. The cry of God, in the words of Malachi, "Return to me and I will return to you," expresses God's commitment and unrelenting love for His people. This proclamation is not based on replacement theology, which assumes that the church has replaced the Jews. But instead on God's promise to restore His people. I hope you enjoy and are blessed with this work. Use it as a beginning point in your study and research. And in the end, may God be glorified and may you be enlightened.