noun

hypocritical and sanctimonious talk, typically of a moral, religious, or political nature.

he had no time for the cant of the priests about sin

hypocrisy,sanctimoniousness,sanctimony,humbug,pietism,affected piety,insincerity,sham,lip service,empty talk,pretence,Pharisaism,Tartufferie

verb

talk hypocritically and sanctimoniously about something.

if they’d stop canting about ‘honest work’ they might get somewhere