The name Korah is also used for at least one other individual in the Hebrew Bible: Korah (son of Esau).
His name is pronounced Qóraḥ in Standard Hebrew, or Qōraḥ in Tiberian Hebrew. Some older English translations, as well as the Douay–Rheims Bible, spell the name Core, and many Eastern European translations have Korak. The Arabic equivalent of the name is قارون, pronounced Qārūn.
It comes from a root meaning "Baldness; ice; hail; frost".
Exodus 6:21 cites Korah as being the son of Izhar son of Kohath son of Levi. Exodus 6:24 lists his three sons. Korah's brothers through Izhar were Nepheg and Zichri. Exodus 6:18 connects this Korah with Hebron, Uzziel and Amram, who were his father's brothers (Izhar son of Kohath). 1 Chronicles 6:2,18,38, and 23:12, repeat this genealogy; however, this reference could have been inspired by the Exodus genealogies. Hebron is the patriarch from whom the region is named.
Numbers 16:1 traces this lineage back further to Levi, son of the patriarch Israel. According to Numbers 16:21, his lineage goes: "Korah, the son of Izhar, the son of Kohath, the son of Levi," making him the great-grandson of the patriarch Levi and the first cousin of Moses and Aaron.
Numbers 16:1–40 indicates that Korah rebelled against Moses along with 249 co-conspirators and were punished for their rebellion when God sent fire from heaven to consume all 250 of them. Korah's Reubenite accomplices, Dathan and Abiram, were also punished when God caused the ground to split open beneath their feet swallowing them, their families, anyone associated with Korah, and all their possessions.
Furthermore, the Israelites who did not like what had happened to Korah, Dathan, and Abiram (and their families) objected to Moses, and God then commanded Moses to depart from the multitude. God then smote 14,700 men with plague, as punishment for objecting to Korah's destruction (Numbers 16:41ff.)
The rabbis of the Talmudic era explained the name "Korah" as meaning "baldness." It was given to Korah on account of the gap or blank which he made in Israel by his revolt. Korah is represented as the possessor of extraordinary wealth, he having discovered one of the treasures which Joseph had hidden in Egypt. The keys of Korah's treasuries alone formed a load for 300 mules. He and Haman were the two richest men in the world, and both died on account of their rapacity, and because their riches were not the gift of Heaven. On the other hand, Korah is represented as a wise man, chief of his family and as one of the Kohathites who carried the Ark of the Covenant on their shoulders.
According to the Rabbis, the main cause of Korah's revolt was the nomination of Elizaphan, son of Uzziel, as prince over the Kohathites, Korah arguing thus: "Kohath had four sons. The two sons of Amram, Kohath's eldest son, took for themselves the kingdom and the priesthood. Now, as I am the son of Kohath's second son, I should be made prince over the Kohathites; however Moses gave that office to Elizaphan, the son of Kohath's youngest son".
Korah asked Moses the following questions: "Does a tallit made entirely of techelet need fringes?" To Moses' affirmative answer Korah objected: "The blue color of the ṭallit does not make it ritually correct, yet according to your statement four blue threads do so". "Does a house filled with the books of the Law need a mezuzah?" Moses replied that it did; whereupon Korah said: "The presence of the whole Torah, which contains 175 chapters, does not make a house fit for habitation, yet you say that one chapter of it does so. It is not from God that you have received these commandments; you have invented them yourself." He then assembled 250 men, chiefs of the Sanhedrin, and, having clad them in tallitot of blue wool, but without fringes, prepared for them a banquet. Aaron's sons came for the priestly share, but Korah and his people refused to give the prescribed portions to them, saying that it was not God but Moses who commanded those things. Moses, having been informed of these proceedings, went to the house of Korah to effect a reconciliation, but the latter and his 250 followers rose up against him.
Korah consulted also his wife, who encouraged him in the revolt, saying: "See what Moses has done. He has proclaimed himself king; he has made his brother high priest, and his brother's sons priests; moreover, he has made you shave all your hair in order to disfigure you." Korah answered: "But he has done the same to his own sons." His wife replied: "Moses hated you so much that he was ready to do evil to his own children provided the same evil would overtake you".
Korah incited all the people against Moses, arguing that it was impossible to endure the laws Moses had instituted. He told them the following parable: "A widow, the mother of two young daughters, had a field. When she came to plow it, Moses told her not to plow it with an ox and an ass together; when she came to sow it, Moses told her not to sow it with mingled seeds; At the time of harvest she had to leave unreaped the parts of the field prescribed by the Law, while from the harvested grain she had to give the priest the share due to him. The woman sold the field and with the proceeds bought two sheep. But the first-born of these she was obliged to give to Aaron the priest; and at the time of shearing he required the first of the fleece also. The widow said: 'I cannot bear this man's demands any longer. It will be better for me to slaughter the sheep and eat them.' But Aaron came for the shoulder, the two cheeks, and the maw. The widow then vehemently cried out: 'If you persist in your demand, I declare them devoted to the Lord.' Aaron replied: 'In that case the whole belongs to me', whereupon he took away the meat, leaving the widow and her two daughters wholly unprovided for".
The question how it was possible for a wise man like Korah to be so imprudent as to rebel is explained by the fact that he was deceived through his own prophetic ability. He had foreseen that the prophet Samuel would be his descendant, and therefore concluded that he himself would escape punishment. But he was mistaken; for, while his sons escaped, he perished.
At the time of Korah's engulfment, the earth became like a funnel, and everything that belonged to him, even linen that was at the launderer's and needles that had been borrowed by persons living at a distance from Korah, rolled till it fell into the chasm. According to the Rabbis, Korah himself underwent the double punishment of being burned and buried alive. He and his followers continued to sink until Hannah prayed for them; and through her prayer, the Rabbis declare, Korah will ascend to paradise. Rabbah bar bar Hana narrates that while he was traveling in the desert, an Arab showed him the place of Korah's engulfment. There was at the spot a slit in the ground into which he introduced some wool soaked in water. The wool became parched. On placing his ear to the slit, he heard voices cry: "Moses and his Torah are true; and we are liars".
Korah is referenced in the New Testament in Jude 11: "Woe to them! They have taken the way of Cain; they have rushed for profit into Balaam's error; they have been destroyed in Korah's rebellion." (NIV)
Korah is also mentioned by Irenaeus of Lyons in his anti-Gnostic work Adversus Haereses (Against Heresies), written in about 180. He criticized the excuse that some evil people in the Bible were credited with obtaining their power from God. Specifically he wrote there are some who:
The Dead Sea Scrolls also provide additional details about Korah, though which Korah is not certain.
Korah is also mentioned in the Quran by the name of Qarun (Arabic: قارون Qārūn). He is recognized as wealthy, and became very arrogant due to his pride and ignorance. He gave the credit of his wealth to his knowledge instead of to Allah (God).
Indeed, Qarun was from the people of Moses, but he tyrannized them. And We gave him of treasures whose keys would burden a band of strong men; thereupon his people said to him, "Do not exult. Indeed, Allah does not like the exultant.— Al-Qasas 28:76
The Quran states he was punished due to his extreme arrogance by being swallowed by earth along with all his great material wealth.
He said, "I was only given it because of knowledge I have." Did he not know that Allah had destroyed before him of generations those who were greater than him in power and greater in accumulation [of wealth]? But the criminals, about their sins, will not be asked.— Al-Qasas 28:78
And We caused the earth to swallow him and his home. And there was for him no company to aid him other than Allah, nor was he of those who [could] defend themselves.— Al-Qasas 28:81