Moses
Exodus 16:9ESV·traditional attribution

Then Moses said to Aaron, “Say to the whole congregation of the people of Israel, ‘Come near before the LORD, for he has heard your grumbling.’”

John Calvin Reformed @genevareformer

9. And Moses spoke unto Aaron. There is no question but that he here cites them as criminals before the tribunal of God, as if he had said that they were mistaken, if they thought that their murmurings were unobserved.

Matthew Henry Presbyterian @wholebiblehenry

The host of Israel, it seems, took along with them out of Egypt, when they came thence on the fifteenth day of the first month, a month's provisions, which, by the fifteenth day of the second month, was all spent; and here we have, I. Their discontent and murmuring upon that occasion, Exo 16:2, Exo 16:3.

Commenting on Exodus 16:1-12

John Gill Reformed Baptist @doctorgill

And Moses spake unto Aaron,.... Who was his prophet and spokesman to the people: say unto all the congregation of the children of Israel; to the heads of them, to as many as could conveniently hear him, and were to report what he said to the rest: come near before the Lord; who was in the pillar of cloud, which from the first appearance of...