In this week’s parsha, Rashi comments: “What made Korach decide to quarrel with Moshe? He envied the chieftainship of Elizaphan the son of Uzziel whom Moshe appointed ... “ (Rashi to Bamidbar 16:1)
Ask Around Your Table: Jealousy was the root cause of Korach’s downfall. But what is the root cause of jealousy?
Answer: The cause of jealousy is looking at another Jew as a person who is separate from you. But by realizing that all of us are connected to each other and we are like one being, then instead of being jealous of someone who has something that you don’t, you will rejoice when you see his blessings (based on Tomer Devorah, chapter 1, “lish’eris nachalaso”).