μήτε δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement until you have heard a speech on both sides
sŭsurrĭō, m., v. susurro 2 : Vulg. Eccli. 5, 16 ; 21, 31.