Today, prominent academics are questioning the very possibility of a theory of free exercise or non-establishment. They argue that judgments in the area can only be conclusory or irrational. In contrast to such skeptics, this Essay argues that decisionmaking on questions of religious freedom can be morally justified. Two arguments constitute the Essay. Part I begins by acknowledging that skepticism has power. The skeptics rightly identify some inevitable indeterminacy, but they mistakenly argue that it necessarily signals decisionmaking that is irrational or unjustified. Their critique is especially striking because the skeptics’ prudential way of working on concrete problems actually shares much with the methods of others. Part II then arg...