Our Sedra deals with the infamous rebellion of Korach, Datan, Aviram & various other malcontents against Korach’s illustrious cousins Moshe & Ahron. Korach contends that Moshe & Ahron have grabbed too much glory & power for themselves. When reconciliation fails, Moshe sets up a test: Ahron & the rebels are to offer ketoret (incense) to G-d; only one will have their offering accepted, the others will die an unusual death. Hashem then causes the earth to open & swallowing Korach, while the other rebels
are consumed by a flame.

Moshe prevents a plague from breaking out among the general populace, many of whom sympathized with Korach. Ahron’s staff miraculously blooms into almond blossoms, & his role as Kohen Gadol is reaffirmed.

The Torah details the various gifts given to the Kohanim, & the obligation to support the Leviim with ma’aser, a tenth of the crops of the Land.