sermonize
US /ˈsɝː.mə.naɪz/
UK /ˈsɝː.mə.naɪz/

1.
sermonear, predicar
deliver a sermon or moral lecture to someone, especially tediously or dogmatically
:
•
He tends to sermonize about the importance of hard work.
Él tiende a sermonear sobre la importancia del trabajo duro.
•
Please don't sermonize me; I already know what I should do.
Por favor, no me sermonees; ya sé lo que debo hacer.