וְהָסֵ֥ר כַּ֙עַס֙ מִלִּבֶּ֔ךָ וְהַעֲבֵ֥ר רָעָ֖ה מִבְּשָׂרֶ֑ךָ כִּֽי־הַיַּלְד֥וּת וְהַֽשַּׁחֲר֖וּת הָֽבֶל׃
Chasse les soucis de ton cœur, éloigne les souffrances de ton corps, car adolescence et jeunesse sont chose éphémère.
Rashi
Therefore banish anger. [Banish] anything that causes anger to the Omnipresent.
Rashi
From your flesh. That you should have a heart of flesh.26Alternatively, if your flesh desires to indulge in anything that is evil, remove those desires from your flesh. (Metsudas Dovid)
Rashi
And youth. שַׁחֲרוּת refers to] youth, because [the hair on] a person’s head is black שָׁחוֹר in his youth.27Alternatively, שחר [=dawn] refers to youth which is the dawn of one’s life.