Serpents And Doves

Εἰπε πάλιν· Γέγραπται, ὅτι Γίνεσθε φρόνιμοι ὡς οἱ ὄφεις, καὶ ἀκέραιοι ὡς αἱ περιστεραί. Τὸ μὲν γὰρ γίνεσθαι ὡς οἱ ὄφεις εἴρηται, πρὸς τὸ μὴ λανθάνειν ἡμᾶς τὰς ὁρμὰς καὶ τὰς μεθοδείας τοῦ διαβόλου· τὸ γὰρ ὅμοιον ἐκ τοῦ ὁμοίου ταχίστην ἔχει τὴν διάγνωσιν· τὸ δὲ ἀκέραιον τῆς περιστερᾶς δείκνυσι τὸ καθαρὸν τῆς πράξεως.  Ἄποφθέγματα των Αγίων Γερόντων, Παλλάδιος Ελενουπόλεως Source: Migne PG 65.427a

Again Mother Syncletica said, 'It is written, 'Be wise as serpents and innocent as doves.' 1 For to be  like serpents means not to be forgetful of the attacks and plots of the devil. Like is quickly known by like. And the simplicity of the dove denotes purity of action.'  Sayings of the Desert Fathers, Palladius of Galatia  1 Mt. 10.16