ויקח שם ויפת את השמלה וישימו על שכם שניהם וילכו אחרנית ויכסו את ערות אביהם
Rashi notes the singular term vayikach, implying that he – Shem – was the one who took the garment to fulfill the commandment of honoring his father. Because he exerted himself more than Yafes, his reward exceeded that of Yafes. Shem was blessed with the mitzvah of Tzitzis, and Yafes, who also participated in carrying out the mitzvah, was blessed with burial for his descendants. This refers to the war of Gog and Magog, during which the children of Yafes will be accorded burial in Eretz Yisrael. The commentators question the attribution of the mitzvah of Tzitzis to Shem’s noble…