ἐπέμψατε ἀγγέλους τοῖς ἀλλήλοις ὥστε ἔγνωτε τὸν κίνδυνον → you sent messengers to one another so that you knew the danger
P. ἀδιάφθορος, ἀδιάφθαρτος.
pure: P. and V. καθαρός, ἀκήρατος (rare P.), ἀκέραιος; see pure.