10
μωυσῆς δὲ καὶ ααρων ἐποίησαν πάντα τὰ σημεῖα καὶ τὰ τέρατα ταῦτα ἐν γῇ αἰγύπτῳ ἐναντίον φαραω ἐσκλήρυνεν δὲ κύριος τὴν καρδίαν φαραω καὶ οὐκ ἠθέλησεν ἐξαποστεῖλαι τοὺς υἱοὺς ισραηλ ἐκ γῆς αἰγύπτου
Exodus 11:10
Arcana Coelestia #7685
7685. 'They were extremely severe' means that they penetrated every single part. This is clear from the explanation here above in 7684.
