The Advent of Divine Justice is a book length letter written by Shoghi Effendi on December 25, 1938 to the Bahais of the United States and Canada describing the role of America in establishing the Most Great Peace. The book is about the destiny of America . Shoghi Effendi describes important role North American Bahá'ís will play establishing the Faith around the world. He says first they must internalize three spiritual prerequisites: "moral rectitude," "absolute chastity," and "complete freedom from prejudice."
The letter continually references the Tablet of the Divine Plan by `Abdu'l-Baha from which Shoghi Effendi derived the objectives of the recently opened Seven Year Plan, the first step in implementing the provisions of 'Abdu'l-Baha's Divine Plan,. He pointed out that upon the success of this greatest joint enterprise ever undertaken by Baha'u'llah's followers must depend the fate of all future activities in the promulgation of His World Order throughout the continents of the globe. With a kind but firm hand Shoghi Effendi held up before the face of the North American Community the mirror of the civilization by which they were surrounded and warned them, in terms that riveted the eye and chilled the heart, against its evils, pointing out to them a truth few of them had ever pondered, namely, that the very evils of that civilization were the mystic reason for their homeland having been chosen by God as the Cradle of His World Order in this day. In no uncertain terms “he castigated the moral laxity, political corruption, racial prejudice and corrosive materialism of their society, contrasting it with the exalted standards inculcated by Baha'u'llah in His Teachings, and enjoined by Him upon His followers.“