Numbers 16:8-11

And Moses said unto Korah, Hear now, ye sons of Levi: seemeth it but a small thing unto you, that the God of Israel hath separated you from the congregation of Israel, to bring you near to himself, to do the service of the tabernacle of Jehovah, and to stand before the congregation to minister unto them; and that he hath brought thee near, and all thy brethren the sons of Levi with thee? and seek ye the priesthood also? Therefore thou and all thy company are gathered together against Jehovah: and Aaron, what is he that ye murmur against him?