Touch not God’s anointed ones.

And they rose up before Moses, with certain of the children of Israel, two hundred and fifty princes of the assembly, famous in the congregation, men of renown: And they gathered themselves together against Moses and against Aaron, and said unto them, Ye take too much upon you, seeing all the congregation are holy, every one of them, and the Lord is among them: wherefore then lift ye up yourselves above the congregation of the Lord? And when Moses heard it, he fell upon his face: And Moses sent to call Dathan and Abiram, the sons of Eliab: which said, We will not come up: But on the morrow all the congregation of the children of Israel murmured against Moses and against Aaron, saying, Ye have killed the people of the Lord. And it came to pass, when the congregation was gathered against Moses and against Aaron, that they looked toward the tabernacle of the congregation: and, behold, the cloud covered it, and the glory of the Lord appeared. And Moses and Aaron came before the tabernacle of the congregation. And the Lord spake unto Moses, saying, Get you up from among this congregation, that I may consume them as in a moment. And they fell upon their faces. And Moses said unto Aaron, Take a censer, and put fire therein from off the altar, and put on incense, and go quickly unto the congregation, and make an atonement for them: for there is wrath gone out from the Lord; the plague is begun. And Aaron took as Moses commanded, and ran into the midst of the congregation; and, behold, the plague was begun among the people: and he put on incense, and made an atonement for the people. And he stood between the dead and the living; and the plague was stayed. Now they that died in the plague were fourteen thousand and seven hundred, beside them that died about the matter of Korah. And Aaron returned unto Moses unto the door of the tabernacle of the congregation: and the plague was stayed.
Numbers 16:2-4,12,41-50 - KJV