These are the words which Moses spoke to the children of Israel, across the Jordan, in the desert, in the plain, opposite Suf, between Paran and Tofel, Lavan, Chatzeiroth, and Di-Zahav (1:1)

All these "places" are allusions to sins committed by the Jewish people during their forty years of wandering in the Sinai Desert. Moses rebuked them only by insinuation so as not to embarrass them.

-Rashi's commentary

Rabbi Menachem Mendel of Lubavitch once delivered a scathing critique of a certain type of outlook and behavior. Later, one of those present complained to him: "Rebbe, why did you rebuke me in public? Could you not have privately made me aware of my negative traits, without embarrassing me in front of everyone?"

Replied Rabbi Menachem Mendel: "Did I mean you? Obviously, I did. You see, I am a hat-maker. The hat-maker fashions a hat and places it in his window. People come in and try it on, until someone finds that it suits his head perfectly. Whom did he have in mind when he made this hat? Why, he made it precisely for the very customer who finds that it fits him!"