A Levite, cousin of Moses and Aaron, who led 250 community leaders in a rebellion challenging their authority and the priesthood. God judged the revolt dramatically: the earth opened and swallowed Korah and his followers. His name became a byword for rebellion.
Now Korah, the son of Izhar, the son of Kohath, the son of Levi, and Dathan and Abiram, the sons of Eliab, and On, the son of Peleth, sons of Reuben, took men:Numbers 16:1, KJV
Numbers 16:19
And Korah gathered all the congregation against them unto the door of the tabernacle of the congregation: and the glory of the LORD appeared unto all the congregation.Numbers 16:19, KJV
Numbers 16:32
And the earth opened her mouth, and swallowed them up, and their houses, and all the men that appertained unto Korah, and all their goods.Numbers 16:32, KJV
Jude 1:11
Woe unto them! for they have gone in the way of Cain, and ran greedily after the error of Balaam for reward, and perished in the gainsaying of Core.Jude 1:11, KJV
See how Korah connects to every other figure in Scripture.