וְל֤וֹא הָֽיְתָה֙ סְדֹ֣ם אֲחוֹתֵ֔ךְ לִשְׁמוּעָ֖ה בְּפִ֑יךְ בְּי֖וֹם גְּאוֹנָֽיִךְ׃
네가 교만하던 때에 네 아우 소돔을 네 입으로 말하지도 아니하였나니
Rashi on Ezekiel
Now, was not Sodom your sister, etc. This is a [rhetorical] question.
Rashi on Ezekiel
a report in your mouth [by which] to reprove many and to say, Beware that you should not be overturned like Sodom, as though it were recent news to you.