Thus, since on the one hand the idea of cause differentiates the Persons of the Holy Trinity, declaring that one exists without a Cause, and another is of the Cause; and since on the one hand the Divine nature is apprehended by every conception as unchangeable and undivided, for these reasons we properly declare the Godhead to be one, and God to be one, and employ in the singular all other names which express Divine attributes.

Ἐπειδὴ τοίνυν τὰς μὲν ὑποστάσεις ἐπὶ τῆς ἁγίας τριάδος ὁ τοῦ αἰτίου διακρίνει λόγος, τὸ μὲν ἀναιτίως εἶναι τὸ δὲ ἐκ τοῦ αἰτίου πρεσβεύων, ἡ δὲ θεία φύσις ἀπαράλλακτός τε καὶ ἀδιαίρετος διὰ πάσης ἐννοίας καταλαμβάνεται, διὰ τοῦτο κυρίως μία θεότης καὶ εἷς θεὸς καὶ τὰ ἄλλα πάντα τῶν θεοπρεπῶν ὀνομάτων μοναδικῶς ἐξαγγέλλεται.