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.