Korach or Korah (Hebrew: קֹרַח Qoraḥ—the name "Korah," which in turn means baldness, ice, hail, or frost, the second word, and the first distinctive word, in the parashah) is the 38th weekly Torah portion (פָּרָשָׁה, parashah) in the annual Jewish cycle of Torah reading and the fifth in the Book of Numbers. It tells of Korach's failed attempt to overthrow Moses.
(summary from Wikipedia.org)