"The Christian Creed; Or, What It Is Blasphemy to Deny" is a book written by Annie Besant, a prominent British socialist, women's rights activist, and theosophist. The book is a critical examination of the fundamental beliefs of Christianity and presents Besant's perspective on what constitutes blasphemy. In the book, Besant states that Christianity's core tenets, including the existence of God, the divinity of Jesus Christ, the concept of sin, and the resurrection, are essential to the faith and cannot be denied without committing blasphemy. Do you believe in the existence of god? "The Christian Creed; Or, What It Is Blasphemy to Deny" was originally written before 1897 and caused a stir in religious circles. The author's ideas challenged the traditional interpretation of Christianity and were seen by some as an attack on the faith. However, the book also garnered praise for its erudition and intellectual rigor.