moralize

US /ˈmɔːr.əl.aɪz/
UK /ˈmɔːr.əl.aɪz/
"moralize" picture
1.

comment on issues of right and wrong, typically with an unfounded air of superiority

:
He tends to moralize about everything, even trivial matters.
The film doesn't moralize; it simply presents the facts.