In this paper I shall explore how religion functioned as a signifier of identity for Emperor Julian, his friend and teacher, Libanius, and his jealous enemy, Gregory Nazianzus, during the bewildering period of Julian's short reign and sudden death. However, before discussing each man's case, it will be useful to clarify the conceptual boundaries of the discussion. Because the term “religion,” as used in the academic world, is problematic for analyzing fourth-century culture, it is first necessary to isolate the concept of religion from the process of universalization. Drawing on the analyses of several post-colonialist theorists, I shall show why the term requires this disengagement, and why its meaning is best understood in light of the complications of specific historical circumstances. Once this issue has been broached, I shall introduce a theoretical basis for viewing “culture” as a commodity that was used by Christianity and pagan religions from 314–365, when, for the most part, both sides enjoyed a rest from institutional persecution. shall also discuss how the concepts of religion and learning were brokered as cultural commodities by these same social groups. Having established this theoretical framework as the basis of my analysis, I shall turn to the investigation of what religion is for Julian, Libanius, and Gregory Nazianzus, how it fits into their own self-image, and what role each envisions for religion as corporate identity for civilized people of the oikoumene.