Jude 1:10-11
10 But these people say evil things against whatever they don’t understand. And the very things they do understand will destroy them. That’s because they are like wild animals that can’t think for themselves. Instead, they do what comes naturally to them.
11 How terrible it will be for them! They have followed the way of Cain. They have rushed into the same mistake Balaam made. They did it because they loved money. They are like Korah. He turned against his leaders. These people will certainly be destroyed, just as Korah was.
Korah was the grandson of Kohath, and he began to run with another group of Reubenite malcontents, namely, Dathan and Abiram, sons of Eliab, and On, son of Peleth. In pride, they roused a group of 250 men together to challenge the right of Moses and Aaron to the priesthood ( Numbers 16 ).