Titus 1:15

15All things [are]πάνταpureκαθαρὰto theτοῖςpureκαθαροῖς·to thoseτοῖςhoweverδὲbeing defiledμεμιαμμένοιςandκαὶunbelievingἀπίστοιςnothingοὐδὲν[is] pureκαθαρόν,Insteadἀλλὰare defiledμεμίανταιtheirαὐτῶνbothκαὶὁmindνοῦςandκαὶἡconscienceσυνείδησις.

All things [are] pure to the pure; but to those being defiled and unbelieving, nothing [is] pure. But both their mind and conscience are defiled.