Moses
Exodus 16:20BSB·traditional attribution

But they did not listen to Moses; some people left part of it until morning, and it became infested with maggots and began to smell. So Moses was angry with them.

Matthew Henry Presbyterian @wholebiblehenry

Now they begin to be provided for by the immediate hand of God. I. He makes them a feast, at night, of delicate fowl, feathered fowl (Psa 78:27), therefore not locusts, as some think; quails, or pheasants, or some wild fowl, came up, and covered the camp, so tame that they might take up as many of them as they pleased.

Commenting on Exodus 16:13-21

John Gill Reformed Baptist @doctorgill

And they gathered it every morning,.... From the time the morning began, during four hours, or to the fourth hour, as the Targum of Jonathan; that is, till ten o'clock in the morning: this was a very wonderful thing that bread should be provided and rained every morning about the camp of Israel, in such plenty as to be sufficient to feed such a vast...

Geneva Bible Notes Reformed @genevanotes

Notwithstanding they hearkened not unto Moses; but some of them left of it until the morning, and it bred worms, and stank: and Moses was wroth with them. (i) No creature is so pure, but being abused it turns to our destruction.