ר֣וּחַ צָ֭פוֹן תְּח֣וֹלֵֽל גָּ֑שֶׁם וּפָנִ֥ים נִ֝זְעָמִ֗ים לְשׁ֣וֹן סָֽתֶר׃
北風帶來雨水；背後說人壞話的舌頭，招來惱怒的面容。
Rashi
an angry countenance A backbiting tongue begets [an angry countenance]. Slander causes the countenance of the Holy One, blessed be He, to be angry, and this is the comparison [of the interpretation] of the verse. [The bracketed words do not appear in the Salonica edition, which seems more correct than our edition.] The north wind is accustomed to beget rain and a backbiting tongue is accustomed to [beget] an angry countenance.