LXX Gen 6:4

οἱ δὲ γίγαντες ἦσαν ἐπὶ τῆς γῆς ἐν ταῖς ἡμέραις ἐκείναις, καὶ μετ’ ἐκεῖνο ὡς ἄν εἰσεπορεύοντο οἱ υἱοὶ τοῦ θεοῦ πρὸς τὰς θυγατέρας τῶν ἀνθρώπων, καὶ ἐγεννῶσαν ἑαυτοῖς· ἐκεῖνοι ἦσαν οἱ γίγαντες οἱ ἀπ’ αἰῶνος, οἱ ἄνθρωποι οἱ ὀνομαστοί.

The Nephilim were on the earth in those days—and afterward as well—when the sons of God had relations with the daughters of men. And they bore them children who became the mighty men of old, men of renown.