Exodus 16:7-8

7and in the morning you will see the glory of the Lord, for He hears your murmurings against the Lord. What are we, that you murmur and rebel against us?”

8Moses said, “This will happen when the Lord gives you meat to eat in the evening, and in the morning [enough] bread to be fully satisfied, because the Lord has heard your murmurings against Him; for what are we? Your murmurings are not against us, but against the Lord.”