John Gill Commentary Exodus 16:7

"and in the morning, then ye shall see the glory of Jehovah; for that he heareth your murmurings against Jehovah: and what are we, that ye murmur against us?" — Exodus 16:7 (ASV)

And in the morning, then you shall see the glory of the Lord ,
either as displayed in this wonderful affair, raining bread about their tents, which was in the morning, or else as it appeared in the cloud, (Exodus 16:7) the latter sense seems to be confirmed by what follows: for that he; the glory of the Lord, the glorious Shechinah of Jehovah, the Angel that went before them in the cloud, the eternal Word and Son of God: hears your murmurings against the Lord; against Jehovah his Father; see (Genesis 19:24)

and what are we, that you murmur against us ?
either signifying that there was no reason for it, and no occasion of it, since not they, but the Lord, brought them out of Egypt, and into those circumstances; what they did was only by his command, and with a view for their good, and therefore it was both unreasonable and ungrateful in them to murmur against them; or as observing, that seeing they murmured against the Lord, it was no strange thing to them they should murmur against them, and therefore took it the more quietly and patiently.