Christ Outside Christianity: The Supernatural in Non-Christian Religions by J. P. Kenny examines Christian theology regarding other religions and the possibility of supernatural manifestations of Christ outside the scope of formal Christianity. The book begins with a fundamental question for Christians: Why do other religions exist if Christianity is believed to be the true path to salvation? The work encourages deeper interfaith dialogue, arguing that an isolated understanding within a Christian context is insufficient to address the reality of religious diversity in the modern world. Overall, the book is a theological analysis that challenges exclusive views of Christianity, opening up the possibility of the role of Christ and the supernatural element of God outside the traditional boundaries of the church.