'Grumble' in the Bible

and in the morning you will see the glory of the Lord, for He hears your grumblings against the Lord; and what are we, that you grumble against us?”

Moses said, “This will happen when the Lord gives you meat to eat in the evening, and bread to the full in the morning; for the Lord hears your grumblings which you grumble against Him. And what are we? Your grumblings are not against us but against the Lord.”