The debate among legal scholars about whether religion is special is chronically confused by the scholars’ failure to grasp a point familiar in the academic study of religion: “religion” is a label for something that has no ontological reality. Religion has no essence. If it has a determinate meaning, it is simply because there is a settled and familiar practice of applying the label of religion in predictable ways. The question of religious accommodation arises in cases where a law can allow some exceptions. Many laws, such as military conscription, taxes, environmental regulations, and antidiscrimination laws, will accomplish their ends even if there is some deviation from the norm they set forth, so long as that deviation does not become...