Prophetic Spirit and God-breathed writings before later inerrancy slogans.
See how this topic lines up over time
Old Man: There existed, long before this time, certain men more ancient than all those who are esteemed philosophers, both righteous and beloved by God, who spoke by the Divine Spirit, and foretold events which would take place, and which are now taking place. They are called prophets.
There were, then, among the Jews certain men who were prophets of God, through whom the prophetic Spirit published beforehand things that were to come to pass, ere ever they happened.
Ἄνθρωποι οὖν τινες ἐν Ἰουδαίοις γεγένηνται θεοῦ προφῆται, δι᾿ ὧν τὸ προφητικὸν πνεῦμα προεκήρυξε τὰ γενήσεσθαι μέλλοντα πρὶν ἢ γενέσθαι· καὶ τούτων οἱ ἐν Ἰουδαίοις κατὰ καιροὺς γενόμενοι βασιλεῖς τὰς προφητείας, ὡς ἐλέχθησαν ὅτε προεφητεύοντο, τῇ ἰδίᾳ αὐτῶν ἑβραΐδι φωνῇ ἐν…
But, since the voices of the prophets confirm our arguments — for I think that you also, with your great zeal for knowledge, and your great attainments in learning, cannot be ignorant of the writings either of Moses or of Isaiah and Jeremiah, and the other prophets, who, lifted in ecstasy above the natural operations…
Εἰ μὲν οὖν ταῖς τοιαύταις ἐννοίαις ἀπηρκούμεθα, ἀνθρωπικὸν ἄν τις εἶναι τὸν καθ᾿ ἡμᾶς ἐνόμισε λόγον. Ἐπεὶ δὲ αἱ φωναὶ τῶν προφητῶν πιστοῦσιν ἡμῶν τοὺς λογισμούς (νομίζω καὶ ὑμᾶς, φιλομαθεστάτους καὶ ἐπιστημονεστάτους ὄντας, οὐκ ἀνοήτους γεγονέναι οὔτε τῶν Μωσέως οὔτε τῶν Ἠσαΐου…
We have learned from none others the plan of our salvation, than from those through whom the Gospel has come down to us, which they did at one time proclaim in public, and, at a later period, by the will of God, handed down to us in the Scriptures, to be the ground and pillar of our faith.
And why should I recount further the vast array of such names and genealogies? So that all the authors and poets, and those called philosophers, are wholly deceived; and so, too, are they who give heed to them.