In his hands the apologetic appeal is not primarily about demythologizing pagan declaration and practice, nor is it a plea for the end of persecution, nor is it a legal argument for Christian incorporation in the Empire. For Firmicus, apologetic critique after Constantine is essentially a matter of exorcizing paganism as a means of participation in the final victory of the Empire. Problems of violence and coercion emerge because Firmicus identifies exorcism with conversion, and delegates the responsibility of exorcism to the Empire with divine certification. In other words, insofar as exorcism amounts to the material eradication of paganism as the home of the demonic, conversion becomes a matter of purely imperial law enforcement. To complicate this reading of De errore and the larger conclusions that it might evidence (IV), I turn to Harold Drake’s historical interpretation as offering an alternate way to make sense of Firmicus’ offensive on the basis of his situation as a recent Christian convert. Lastly (V), to add a theological complication, I argue that Firmicus tacitly articulates a second theology of conversion in De errore that emphasizes divine calling and human (i.e., pagan) volition. This theology of conversion