The dying all around convinced Moses, that wrath was gone forth from the LORD.
Related Commentaries of Numbers 16:43
Numbers 16:43-46
43 And Moses and Aaron came before the tabernacle of the congregation.
44 And the LORD spake unto Moses, saying,
45 Get you up from among this congregation, that I may consume them as in a moment. And they fell upon their faces.
46 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.