In Homilies on John 31.1, John Chrysostom wrote:
But why speak I of a portion of doctrine? Though a man believe rightly
on the Father, the Son, and the Holy Ghost, yet if he lead not a right life,
his faith will avail nothing towards his salvation.
This is how the text appears in PG 59:176:
Καὶ τί λέγω περὶ μέρους δόγματος; Κἂν γὰρ εἰς τὸν Πατέρα τις καὶ τὸν Υἱὸν ὀρθῶς
πιστεύσῃ , καὶ εἰς τὸ Πνεῦμα τὸ ἅγιον, βίον δὲμὴ ἔχῃ ὀρθὸν , οὐδὲν αὐτῷ κέρδος
τῆς πίστεως e εἰς σωτηρίαν.
