https://www.btstories.com/korahs-rebellion/

As Israel went back into the wilderness, four men decided to set things straight concerning Moses and Aaron. The leader was Korah, from the tribe of Levi. They formed a group of two hundred fifty prominent men and went to Moses. They said, “You’ve taken your authority too far. We’re a holy nation. The Lord is with all of us. Things don’t have to always go through you.”