Korah in Fausset's Bible Dictionary

1. Esau's son, by Aholibamah (Genesis 36:5; Genesis 36:14; Genesis 36:18). A duke of Edom, born in Canaan before Esau migrated to Mount Seir. 2. Sprung from Eliphaz (Genesis 36:16), but probably it is a copyist's error from Genesis 36:18. One manuscript of the Samaritan Pentateuch omits it. 3. A son of Hebron, descended from Judah (1 Chronicles 2:43). 4. Son (or, descendant) of Izhar, son of Kohath, son of Levi. Ringleader of the rebellion against Moses and Aaron (Numbers 16; Numbers 26:9-11); the one solitary anecdote recorded of the 38 years' wandering, uncircumcision, and shame, Not content with his honourable post as a Levite "minister" to the sanctuary, Korah "sought the priesthood also." Associated with him in the rebellion Dathan, Abiram, and On (the last is not mentioned subsequently), sprung from Reuben, who sought to regain the forfeited primogeniture and the primacy of their own tribe among Israel's tribes (1 Chronicles 5:1). The punishment answered to the Reubenites' sin, their pride was punished by "Reuben's men being made few," so that Moses prayed "let Reuben live and not die," i.e. be saved from extinction (Deuteronomy 33:6)...