Behind the Masks of God develops an abstract concept of creation ex nihilo to compare and contextualize many of the symbols and more concrete ideas of divinity in world religions. The first focus is Christianity, and the book is put forward as an essay in Christian theology. In addition, the essay asks how creation ex nihilo serves to relate Christianity to other religions, particularly those of China. Neville addresses both Buddhism and Christianity, and to a lesser extent Taoism, as test cases for the applicability of creation ex nihilo as a fundamental comparative category for connecting theistic religions with non-theistic ones.