Understanding Man’s Threefold Nature The Threefold Nature of Man is the result of years of study by Rev. Kenneth E. Hagin. The subject of man’s threefold nature--spirit, soul, and body--always intrigued Rev. Hagin. Like most Christians, however, he had never been taught this essential Bible truth. When he began to study the subject, he encountered a great deal of confusion; especially in distinguishing between spirit and soul. "Much error has been taught, even from the pulpit," he comments. After much prayer and Bible study, he learned that man is a spirit who possesses a soul and lives in a body. He elaborates on the threefold nature of man in this book.