(Devarim, Ibid.) "and Chatzeroth": He said to them: Should you not have learned from what I did to Miriam in Chatzeroth? (viz. Bamidbar 12). If I did not show favoritism in judgment to Miriam the righteous, how much more so (would I not do so) to others!
Variantly: If Miriam, who spoke only against her younger brother, was thus punished, how much more so one who speaks against another greater than he!
Variantly: If (in the instance of) Miriam, who spoke thus only in the hearing of the L-rd alone — (viz. Ibid. 12:2 - "And the L-rd heard") — was thus punished, how much more so, one who demeans his neighbor in public!