Plato, Laws 699c

εἶναι καὶ τοὺς θεούς. ταῦτʼ οὖν αὐτοῖς πάντα φιλίαν ἀλλήλων ἐνεποίει, ὁ φόβος ὁ τότε παρὼν ὅ τε ἐκ τῶν νόμων τῶν ἔμπροσθεν γεγονώς, ὃν δουλεύοντες τοῖς πρόσθεν νόμοις ἐκέκτηντο, ἣν αἰδῶ πολλάκις ἐν τοῖς ἄνω λόγοις εἴπομεν, ᾗ καὶ δουλεύειν ἔφαμεν δεῖν τοὺς μέλλοντας ἀγαθοὺς ἔσεσθαι, ἧς ὁ δειλὸς ἐλεύθερος καὶ ἄφοβος· ὃν εἰ τότε μὴ δέος ἔλαβεν, οὐκ ἄν ποτε συνελθὼν ἠμύνατο, οὐδʼ ἤμυνεν ἱεροῖς τε καὶ τάφοις καὶ πατρίδι καὶ τοῖς ἄλλοις οἰκείοις τε ἅμα καὶ φίλοις,

So all this created in them a state of friendliness one towards another—both the fear which then possessed them, and that begotten of the past, which they had acquired by their subjection to the former laws—the fear to which, in our previous discussions, we have often given the name of reverence, saying that a man must be subject to this if he is to be good (though the coward is unfettered and unaffrighted by it). Unless this fear had then seized upon our people, they would never have united in self-defence, nor would they have defended their temples and tombs and fatherland, and their relatives and friends as well,