וישמע הכנעני מלך ערד... בבא בני ישראל
Rashi teaches that the king of Arad heard of the passing of Aharon HaKohen, thereby signaling the end of the protective barrier of Ananei HaKavod, the Pillars of Cloud. They felt that it was a message that the Jewish People were now vulnerable to attack. Apparently, when the king of Arad attacked, the Jewish People had no idea that it was linked to the passing of Aharon HaKohen. Indeed, they attributed Aharon’s death to his participation in the sin of Mei Merivah, the waters of strife, when the stone was hit instead of being spoken to. The attack from Arad…
