וְאֵ֨לֶּה פְקוּדֵ֣י הַלֵּוִי֮ לְמִשְׁפְּחֹתָם֒ לְגֵרְשׁ֗וֹן מִשְׁפַּ֙חַת֙ הַגֵּ֣רְשֻׁנִּ֔י לִקְהָ֕ת מִשְׁפַּ֖חַת הַקְּהָתִ֑י לִמְרָרִ֕י מִשְׁפַּ֖חַת הַמְּרָרִֽי׃
E estes são os recenseados dos leviítas, segundo as suas famílias: de Gereshom, a família dos gereshomitas; de Kehat, a família dos kehatitas; de Merari, a família dos meraritas.
Dirshuni II
When Moshe ascended on high, he was sitting and writing the Torah from the mouth of the Might. He reached the verse "The nakedness of your father's sister you shall not uncover, she is your father's flesh" (Vayikra 18:12). He said: And was my mother not the aunt of my father? Was Amram not my father, and he is the son of Kehat the grandson of Levi, as it is said "And these are the records of Levi, to their families... to Kehat the Kehati family... and Kehat fathered Amram" (Bamidbar 26:57-58). And Yocheved, my mother, she was the daughter of Levi, as it is said "And the name of the wife of Amram was Yocheved daughter of Levi, that Levi had fathered her in Egypt, and Aharon and Moshe and Miriam their sister were born to Amram" (Bamidbar 26:59). So it turns out that Yocheved and Kehat were siblings, and Yocheved was forbidden to the children of Kehat. Moshe's spirits fell.