Moses
Numbers 16:11BSB·traditional attribution

Therefore, 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?”

John Calvin Reformed @genevareformer

11. For which cause both thou, and all thy company. He here lays open their sin, which they had endeavored to disguise. For they had neither scruple nor shame, as we have seen, in pretending pious zeal. But in one word Moses scatters these mists, telling them that they were instigated by nothing but pride and envy to disturb the condition of the people.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. An account of the rebels, who and what they were, not, as formerly, the mixed multitude and the dregs of the people, who are therefore never named, but men of distinction and quality, that made a figure. Korah was the ring-leader: he formed and headed the faction; therefore it is called the gainsaying of Korah, Jde 1:11.

Commenting on Numbers 16:1-11

John Gill Reformed Baptist @doctorgill

For which cause, both thou and all thy company are gathered together against the Lord,.... For gathering together against his ministers, whom he had put into office to act under him, and endeavouring to overturn a constitution of his erecting, and resisting and not submitting to an ordinance of his, is interpreted gathering against him, and acting in opposition to him; see Rom 13:1, and...