Who is this King of Glory? (1944) by Alvin Boyd Kuhn argues that Christianity is a literalized misunderstanding of ancient Egyptian, Greek, and pagan mythological traditions. Kuhn contends that the gospel narratives are not history, but rather, cryptic allegories of the human soul's spiritual evolution, rather than events that occurred in the Middle East. The book is considered a significant text in the "Christ myth theory" field, emphasizing that the "Christos" is a universal spiritual principle rather than a single historical figure.