C. F. Keil and Franz Delitzsch on Numbers 16:41

Num 16:41

Punishment of the Murmuring Congregation. - The judgment upon the company of Korah had filled the people round about with terror and dismay, but it had produced no change of heart in the congregation that had risen up against its leaders. The next morning the whole congregation began to murmur against Moses and Aaron, and to charge them with having slain the people of Jehovah. They referred to Korah and his company, but especially to the 250 chiefs of renown, whom they regarded as the kernel of the nation, and called “the people of Jehovah.” They would have made Moses and Aaron responsible for their death, because in their opinion it was they who had brought the judgment upon their leaders; whereas it was through the intercession of Moses (Num 16:22) that the whole congregation was saved from the destruction which threatened it. To such an extent does the folly of the proud heart of man proceed, and the obduracy of a race already exposed to the judgment of God.