Exodus 16:3-4

The Israelites said to them, “If only we had died by the hand of the LORD in the land of Egypt, when we sat by the fleshpots and ate our fill of bread; for you have brought us out into this wilderness to kill this whole assembly with hunger.” Then the LORD said to Moses, “I am going to rain bread from heaven for you, and each day the people shall go out and gather enough for that day. In that way I will test them, whether they will follow my instruction or not.