Parallel
Exodus 11:6
Rahlfs Septuagint (1935) · Berean Standard Bible
καὶ ἔσται κραυγὴ μεγάλη κατὰ πᾶσαν γῆν Αἰγύπτου ἥτις τοιαύτη οὐ γέγονεν καὶ τοιαύτη οὐκέτι προστεθήσεται
Then a great cry will go out over all the land of Egypt. Such an outcry has never been heard before and will never be heard again.