Exodus 16:4-8

Then the LORD said to Moses, “Behold, I will cause bread to rain from heaven for you; the people shall go out and gather a day’s portion every day, so that I may test them [to determine] whether or not they will walk [obediently] in My instruction (law). And it shall be that on the sixth day, they shall prepare to bring in twice as much as they gather daily [so that they will not need to gather on the seventh day].” So Moses and Aaron said to all Israel, “At evening you shall know that the LORD has brought you out of the land of Egypt, and 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?” ORD Moses 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.”