ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
faith: P. and V. πίστις, ἡ.
obedience: P. and V. πειθαρχία, ἡ.
throw off one's allegiance: P. ἀφίστασθαι.