Judaism makes the bold argument that the very concept of a religion of 'Judaism' is an invention of the Christian church. The intellectual journey of world-renowned Talmud scholar Daniel Boyarin, this book will change the study of "Judaism"--an essential key word in Jewish Studies--as we understand it today. Boyarin argues that although the world treats the word "Judaism" as appropriate for naming an alleged religion of the Jews, it is in fact a Christian theological concept only adopted by Jews with the coming of modernity and the adoption of Christian languages.