In Parshat Yitro, just before Matan Torah, the Torah describes Bnei Yisrael’s encampment at Har Sinai: “וַיִּחַן שָׁם יִשְׂרָאֵל נֶגֶד הָהָר” – “And Israel encamped there opposite the mountain.” (Shemot 19:2) Rashi famously points out the unusual singular form of “וַיִּחַן” (they encamped), rather than the expected plural, explaining that Bnei Yisrael were united “כְּאִישׁ…