Midrash su Levitico 10:20

12) (Vayikra 10:20): "And Moses heard, and it was good in his eyes": He admitted immediately that he had heard the halachah and had forgotten it, and was shamed into saying: I did not hear it. R. Yehudah said: Chananiah b. Yehudah was wont to expound all his days: Sore is officiousness (in this instance, Moses' officiousness with Aaron), which caused Moses to err (in the halachah). After his death, I demur: What caused him to be officious? His erring.

R. Simeon ben Yohai began his discourse with the verse “He stood, and measured the earth” (Habakuk 3:6). That is, the Holy One took the measure of all peoples and found no people other than Israel worthy of receiving the Torah. The Holy One took the measure of all generations and found no generation other than the generation of the wilderness worthy of receiving the Torah. The Holy One took the measure of all mountains and found no mountain other than Sinai worthy of having the Torah given on it. The Holy One took the measure of all cities and found no city other than Jerusalem worthy of having the Temple built within it. The Holy One took the measure of all lands and found no land other than the Land of Israel worthy of being given to Israel.