During Makas Choshech, plague of darkness, the Egyptian people were overwhelmed with an opaque, fog-like condition that enveloped the country and extinguished all flames. Thus, even if an Egyptian could reach his lamp, any flame that he would kindle would immediately be extinguished. Horav Gamliel Rabinowitz, Shlita, says that the word b’moshvosam, in their dwellings, contains within it the letters which comprise the word b’shabbosam, in their Shabbosos, which he feels alludes to the notion that the reason the Jewish people were able to withstand the darkness of the Egyptian exile was that they observed Shabbos Kodesh. Indeed, Chazal (Shemos…