Exodus 16:4, 8

Then the LORD said to Moses, “I will cause food to fall like rain from the sky for all of you. Every day the people must go out and gather what they need for that day. I want to see if the people will do what I teach them.

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.”