Numbers 16:8-11

8Moses also said to Korah, “Now listen, you sons of Levi! 9Is it not enough for you that the God of Israel has separated you from the congregation of Israel and brought you near to Himself to perform the work at the LORD’s tabernacle, and to stand before the congregation to minister to them? 10He has brought you near, you and all your fellow Levites, but you are seeking the priesthood as well. 11Therefore, it is you and all your followers who have conspired against the LORD! As for Aaron, who is he that you should grumble against him?”