The dialogue De recta in Deum fide or On the Orthodox Faith in God is also known as Dialogue of Adamantius (Adamantius, Dialogue on the True Faith in God) from the name of its protagonist, Adamantius, who bears the Christian byname of Origen of Alexandria. This is a mysterious and severely understudied document, which features Adamantius as a champion of the orthodox faith engaged in a discussion with “heretics” such as Marcionites, “Valentinians,” and Bardaisanites. As demonstrated by I. Ramell…