The Lord and Bread

Ἄρτος ὁ Κύριος κέκληται, αὐτὸς ἑαυτὸν τούτῳ καλῶν τῷ ὀνόματι. Κατὰ μὲν τὴν πρόχειρον ἔκληψιν, ὡς πᾶσι τροφὴ σωτηρίας γενόμενος· κατὰ δὲ τὴν ἀπόῥῥητον ἔννοιαν, τὴν ζύμην τοῦ ἀνθρωπείου φυράματος ἐνώσας καὶ καθάρας, καὶ ὥσπερ ἐξοπτήσας τῷ οἰκείῳ πυρὶ τῆς θεότητος, καὶ εἰς ἔν σὺν αὐτῇ γεγονὼς πρόσωπον καὶ μίαν προσκυνουμένην ὑπόστασιν. Ἅγιος Ἰσίδωρος Του Πηλουσιώτου, Βιβλίον Πρῶτον, ἘπιστολήΤΞ' Θεωνι

The Lord was named bread, He referring to Himself by this name. 1 And with this sense He was so named, that to everyone He be the food of salvation; but according to a more mystical sense: He mixed the yeast with human dough and purged it, even with fire of His own divinity, that it be made one with His person and adorable hypostasis. Saint Isidore of Pelusium, Book 1, Letter 360, To Theon 1 Jn 6.35