Letter to Sixtus, Bishop of Rome
Ad Xystum episcopum Romae
Letter to Xystus Bishop of Rome§1
1From the letter of Cyril to Justus (read Xystus), bishop of Rome.
For I have never been shown to have held any belief at odds with what the truth approves, nor have I ever called the divine nature of the Word capable of suffering.
And a little further on: I know too that the nature of God is incapable of suffering, unchangeable, and unalterable, even in the human nature, and that Christ is one, in both natures and from both natures.
Greek · §1
Ad Xystum episcopum Romae EPISTOLA LIII. CYRILLI AD SANCTUM XYSTUM PAPAM. Κυρίλλου ἐκ τῆς πρὸςἸούστον [ξορρ. Ξύστον] ἐπίσκοπονῬώμης ἐπιστολῆς. Ἐγὼ γὰρ οὔτε ἐλέγχομαι πεφρονηκὼς ἕτερόν τι πώποτε παρὰ τὸ δοκοῦν τῇ ἀληθείᾳ, οὔτε παθητὴν εἴρηκά ποτε τὴν θείαν τοῦ Λόγου φύσιν. Καὶ μετὰ βραχύ· Οἶδα δὲ καὶ ἀπαθῆ τὴν τοῦ Θεοῦ φύσιν καὶ 77.288 ἄτρεπτον καὶ ἀναλλοίωτον, κὰν τῇ τῆς ἀνθρωπότητος φύσει, καὶ ἕνα ἐν ἀμφοῖν καὶ ἐξ ἀμφοῖν τὸν Χριστόν.