“Exposition of the Divine Principle” was published on May 1, 1966, as a systematic theological system reorganized from “Explanation of the Divine Principle,” which was a simpler version of the “Original Divine Principle.” “Exposition of the Divine Principle” is organized into 13 chapters, seven in the first part and six in the second part, based on the providence of restoration: the Principle of Creation, the Principle of the Fall, and the Principle of Restoration.