Numbers 16:8-11

8And Moses said unto Korah, Hear, I pray you, ye sons of Levi:

9Seemeth 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 Yhwh, and to stand before the congregation to minister unto them?

10And he hath brought thee near to him, and all thy brethren the sons of Levi with thee: and seek ye the priesthood also?

11For which cause both thou and all thy company are gathered together against Yhwh: and what is Aaron, that ye murmur against him?