A.B. Simpson is at his best, revealing the depth of his wisdom, and breath of his scholarly understanding of the Scriptures in this TWO VOLUME teaching on the Holy Spirit. (Both volumes in one.)A. B. Simpson was a Presbyterian minister who left his church to be independent, and founded The Christian and Missionary Alliance organization.He expounds on the manifestations of the Holy Spirit, and explains the meaning behind each manifestation, in order to teach or offer guidance. Each chapter of this book begins with a quotation from the Bible.