For Israel this attack of Amalek had indeed serious consequences, for as soon as they perceived the approach of the enemy, they were afraid to continue the march to Palestine, being now no longer under the protection of the clouds, that vanished with Aaron's death; hence they determined to return to Egypt. They actually carried out part of this project by retreating eight stations, but the Levites pursued them, and in Moserah there arose a bitter quarrel between those who wanted to return to Egypt and the Levites who insisted upon the continuance of the march to Palestine.
Of the former, eight tribal divisions were destroyed in this quarrel, five Benjamite, and one each of the Simeonite, Gadite, and Asherite divisions, while of the Levites one division was completely extirpated, and three others decimated in such a way that they did not recover until the days of David. The Levites were finally victorious, for even their opponents recognized that it had been folly on their part to desire to return to Egypt, and that their loss had been only a punishment because they had not arranged a mourning ceremony adequate to honor a man of Aaron's piety.
They thereupon celebrated a grand mourning ceremony for Aaron in Moserah, and it is for this reason that people later spoke of this place as the place where Aaron died, because the great mourning rites took place there.