Deuteronomy 8:1-2, 16

“Be careful to obey all the commands I am giving you today. Then you will live and multiply, and you will enter and occupy the land the LORD swore to give your ancestors. Remember how the LORD your God led you through the wilderness for these forty years, humbling you and testing you to prove your character, and to find out whether or not you would obey his commands.

He fed you with manna in the wilderness, a food unknown to your ancestors. He did this to humble you and test you for your own good.