וְהֶעָנָ֗ן סָ֚ר מֵעַ֣ל הָאֹ֔הֶל וְהִנֵּ֥ה מִרְיָ֖ם מְצֹרַ֣עַת כַּשָּׁ֑לֶג וַיִּ֧פֶן אַהֲרֹ֛ן אֶל־מִרְיָ֖ם וְהִנֵּ֥ה מְצֹרָֽעַת׃
And when the cloud was removed from over the Tent, behold, Miriam was leprous, as white as snow; and Aaron looked upon Miriam; and, behold, she was leprous.
Read Jewish philosophy on Numbers 12:10: Rambam's Guide for the Perplexed, Saadia Gaon, and classical Jewish philosophical sources, free online.