Exodus 16:2-3, 8

Then the whole Israelite community grumbled to Moses and Aaron in the desert. They said to them, “It would have been better if the LORD had killed us in the land of Egypt. There we had meat to eat and all the food we wanted. But you have brought us into this desert to starve us to death.”

And Moses said, “Each evening the LORD will give you meat to eat, and every morning he will give you all the bread you want, because he has heard you grumble against him. You are not grumbling against Aaron and me, because we are nothing; you are grumbling against the LORD.”