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Demetrius condemned Origen for insubordination and accused him of having castrated himself (though it has been proposed that this was a result of misunderstanding Origen’s mystical reference to his own celibacy [1]) and of having taught that even Satan would eventually attain salvation, an accusation which Origen vehemently denied

Demetrius also alleged that Origen had taught an extreme form of apokatastasis, which held that all beings, including even Satan himself, would eventually attain salvation.[12] This allegation probably arose from a misunderstanding of Origen's argument during a debate with the Valentinian Gnostic teacher Candidus.[12] Candidus had argued in favor of predestination by declaring that the Devil was beyond salvation.[12] Origen had responded by arguing that, if the Devil is destined for eternal damnation, it was on account of his actions, which were the result of his own free will.[74] Therefore, Origen had declared that Satan was only morally reprobate, not absolutely reprobate.[74]