ויקחו שני בני יעקב שמעון ולוי אחי דינה איש חרבו... ויהרגו כל זכר
In his commentary to Nazir 29b, Rashi comments based upon the Midrash that Levi was thirteen years old at the time that he and Shimon took vengeance on the men of Shechem. Wherever the Torah uses the word ish, man, it refers to someone over the age of thirteen years. Likewise, we find that Betzalel, architect of the Mishkan, was thirteen years old when he made the Mishkan. Concerning him, the Torah writes, Ish ish mimelachato, “Each (man) of them from his work” (Shemos 36:4). Additionally, we find that the Rambam reiterated the halachah that the age of thirteen years…