When the Israelites saw it, they asked each another, “What is it?” because they had no idea what it was. So Moses explained to them, “It's the bread the Lord has provided for you to eat.
The Israelites ate manna forty years, until they came to the land where they would settle down—they ate manna until they arrived at the border of Canaan.
Then Moses continued, “The Lord is going to give you meat to eat this evening and as much bread as you want in the morning, for he has heard your complaints against him. Why are you complaining to us nobodies? Your complaints aren't directed against us, but against the Lord.”
You are to observe the Festival of Unleavened Bread as I instructed you. You are to eat bread without yeast for seven days at the appropriate time in the month of Abib, because that was the month you left Egypt. No one can come before me without bringing an offering.
He humbled you, and when you were hungry he gave you manna to eat, which nobody, including you and your forefathers, had ever had before. This was in order to make it clear to you that human beings do not live by only eating bread, but by every word that comes from the mouth of the Lord.