Archbishop Fulton J. Sheen's Religion Without God (1928) is a philosophical study that critiques the modern tendency to reduce religion to a secular humanism devoid of theology. Sheen analyzes 19th- and 20th-century thought that empties God of meaning, emphasizing the dangers of a religion that focuses solely on human experience rather than divine truth. The book offers a critical view of the secularization of faith and emphasizes the importance of theology in religion. It was written in response to a theoretically cold thinking that separates the practical relationship between humans and God.