Numbers 16

"So they got away from around the tents of Korah, Dathan, and Abiram; and Dathan and Abiram came out and stood at the door of their tents, with their wives, their sons, and their little children." v.27

Read chapter 16
Korah's rebellion is a prideful one that brings many down.  After the whole congregation rebelling against God of not trusting Him to bring them safely into the promised land and therefore having to wander in the desert they cast the blame on Moses (vv.12-14).  Korah was a first cousin of Moses and Aaron as we learn from Exodus 6.  Korah, Dathan and Abiram have a spiritual envy thinking that just because Moses is the leader that he was better than they.   It's interesting to note that the whole families of Dathan and Abiram are swallowed up by the earth but not Korah's family, only Korah himself.  Later in Numbers 26:11 we read that "the children of Korah did not die."  This surely could be  that they didn't side with their father.  You may have heard of the "sons of Korah" from the psalms as they were writers & singers of eleven psalms.  Even though their father rebelled against the Lord they chose to follow after their Heavenly Father their whole lives.  Korah's rebellion in not only led to the death of Dathan and Abriam and their families but also 250 other leaders of Israel that chose to agree and follow Korah.  The 250 didn't get swallowed up by the earth but were consumed by fire from the Lord.  This would have been a sight to see!  First the earth opening up and these two families consumed into the pit and then fire come down and only consume the 250 people.  The Lord doesn't open up the earth today to consume people when they rebel against His chosen ones, but we can learn of the anger the Lord has when we rebel out of spiritual envy of others.  Have you envied another man's spirituality to their or yours harm?