Justin Martyr, First Apology 31
Certain people among the Jews became prophets of God, and through them the prophetic Spirit proclaimed events before they happened. These prophets, who served as kings among the Jews at various times, acquired the prophecies as they were spoken and preserved them in books, written in their own Hebrew language under the prophets themselves.
When Ptolemy, the king of the Egyptians, was building a library and attempting to gather the writings of all people, he also learned about these prophecies. He sent to Herod, the king ruling the Jews at that time, requesting that the books of the prophecies be sent to him. King Herod sent them, written in the aforementioned Hebrew language of theirs.
However, since the contents of the books were unknown to the Egyptians, Ptolemy asked him again, sending men to translate them into the Greek language. Once this was done, the books remained among the Egyptians until now, and they are everywhere among all Jews. These Jews read them but do not understand what is said; instead, they consider us enemies and adversaries, similarly annihilating and punishing us whenever they can, as you can also be persuaded.
For even in the recently occurred Jewish war, Barchochebas, the leader of the Jewish rebellion, ordered Christians alone to be led away to terrible punishments unless they denied Jesus the Christ and blasphemed.
In the books of the prophets we find it proclaimed and foretold that Jesus our Christ would come, be born of a virgin, grow to manhood, and heal every disease and every weakness, and raise the dead. It was also foretold that He would be envied and unknown and crucified, and that He would die and be raised and ascend into the heavens, and be the Son of God and be called such. It was further foretold that some would be sent by Him to every nation of men to proclaim these things, and that men from the nations would believe in Him rather than the Jews.
These things were prophesied before He appeared: at one time five thousand years beforehand, at another three thousand, at another two thousand, and again one thousand, and at another time eight hundred years; for according to the successions of the generations, different prophets arose at different times.
Greek
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 βιβλίοις ὑπ᾿ αὐτῶν τῶν προφητῶν συντεταγμένας κτώμενοι περιεῖπον. Ὅτε δὲ Πτολεμαῖος, ὁ Αἰγυπτίων βασιλεύς, βιβλιοθήκην κατεσκεύαζε καὶ τὰ πάντων ἀνθρώπων συγγράμματα συνάγειν ἐπειράθη, πυθόμενος καὶ περὶ τῶν προφητειῶν τούτων, προσέπεμψε τῷ τῶν Ἰουδαίων τότε βασιλεύοντι Ἡρώδῃ ἀξιῶν διαπεμφθῆναι αὐτῷ τὰς βίβλους τῶν προφητειῶν. Καὶ ὁ μὲν βασιλεὺς Ἡρώδης τῇ προειρημένῃ ἑβραΐδι αὐτῶν φωνῇ γεγραμμένας διεπέμψατο. Ἐπειδὴ δὲ οὐκ ἦν γνώριμα τὰ ἐν αὐταῖς γεγραμμένα τοῖς Αἰγυπτίοις, πάλιν αὐτὸν ἠξίωσε πέμψας τοὺς μεταβαλοῦντας αὐτὰς εἰς τὴν ἑλλάδα φωνὴν ἀθρώπους ἀποστεῖλαι. Καὶ τούτου γενομένου ἔμειναν αἱ βίβλοι καὶ παρ᾿ Αἰγυπτίοις μέχρι τοῦ δεῦρο, καὶ πανταχοῦ παρὰ πᾶσίν εἰσιν Ἰουδαίοις, οἳ καὶ ἀναγινώσκοντες οὐ συνιᾶσι τὰ εἰρημένα, ἀλλ᾿ ἐχθροὺς ἡμᾶς καὶ πολεμίους ἡγοῦνται, ὁμοίως ὑμῖν ἀναιροῦντες καὶ κολάζοντες ἡμᾶς ὁπόταν δύνωνται, ὡς καὶ πεισθῆναι δύνασθε. Καὶ γὰρ ἐν τῷ νῦν γεγενημένῳ ἰουδαϊκῷ πολέμῳ Βαρχωχέβας, ὁ τῆς Ἰουδαίων ἀποστάσεως ἀρχηγέτης, Χριστιανοὺς μόνους εἰς τιμωρίας δεινάς, εἰ μὴ ἀρνοῖντο Ἰησοῦν τὸν Χριστὸν καὶ βλασφημοῖεν, ἐκέλευεν ἀπάγεσθαι. Ἐν δὴ ταῖς τῶν προφητῶν βίβλοις εὕρομεν προκηρυσσόμενον παραγινόμενον, γεννώμενον διὰ παρθένου, καὶ ἀνδρούμενον καὶ θεραπεύοντα πᾶσαν νόσον καὶ πᾶσαν μαλακίαν καὶ νεκροὺς ἀνεγείροντα, καὶ φθονούμενον καὶ ἀγνοούμενον καὶ σταυρούμενον Ἰησοῦν τὸν ἡμέτερον Χριστόν, καὶ ἀποθνήσκοντα καὶ ἀνεγειρόμενον καὶ εἰς οὐρανοὺς ἀνερχόμενον, καὶ υἱὸν θεοῦ ὄντα καὶ κεκλημένον, καί τινας πεμπομένους ὑπ᾿ αὐτοῦ εἰς πᾶν γένος ἀνθρώπων κηρύξοντας ταῦτα, καὶ τοὺς ἐξ ἐθνῶν ἀνθρώπους μᾶλλον αὐτᾷ πιστεύειν. Προεφητεύθη δέ, πρὶν ἢ φανῆναι αὐτόν, ἔτεσι ποτὲ μὲν πεντακισχιλίοις, ποτὲ δὲ τρισχιλίοις, ποτὲ δὲ δισχιλίοις, καὶ πάλιν χιλίοις καὶ ἄλλοτε ὀκτακοσίοις· κατὰ γὰρ τὰς διαδοχὰς τῶν γενῶν ἕτεροι καὶ ἕτεροι ἐγένοντο προφῆται.