Library Theodoret Compendium of Heretical Fables
Book 2
On the Melchizedekians
They say that the Melchizedekians are a segment of these, and that they differ in one point only: that they suppose Melchizedek to be a certain power, divine and very great, and that Christ came into being according to his image. Another Theodotus, a money-changer by trade, began this heresy.
Greek: Theodoret of Cyrus, Haereticarum fabularum compendium / Αἱρετικῆς κακομυθίας ἐπιτομή (CPG 6223; PG 83, 336–556). English: study translation for BWAB Library—not a modern copyrighted translation. The full five books are hosted here.