וְהֶעָנָן סָר מֵעַל הָאֹהֶל וְהִנֵּה מִרְיָם מְצֹרַעַת כַּשָּׁלֶג וַיִּפֶן אַהֲרֹן אֶל־מִרְיָם וְהִנֵּה מְצֹרָעַת׃
As the cloud withdrew from the Tent, there was Miriam stricken with snow-white scales! When Aaron turned toward Miriam, he saw that she was stricken with scales.
Numbers 12:10 "It [the cloud] only departed to show that ordinarily, if not for Miriam’s quarantine, the people would have been on the way already. In other words, the Torah made it clear to everyone that the entire people’s progress toward the Holy Land had been delayed for seven days in honor of Miriam." - Rabbeinu Bahya on Num. 12:10












