Korach 5773

In selichos, we call out to Hashem to answer us just as he answered Aharon during the plague in this week's parsha. But Moshe had commanded Aharon to fight the plague, there was no answer from Hashem to Aharon! R' Moshe Feinstein answers that if Moshe had called upon any other priest, they wouldn't stand a chance. Only Aharon had the merit to fight against the plague and stop it. This is to emphasize once again that Aharon was the chosen priest of Hashem and to further dismiss Korach's claim.