Deuteronomy 8:3-6

Yes, he humbled you by letting you go hungry and then feeding you with manna, a food previously unknown to you and your ancestors. He did it to teach you that people do not live by bread alone; rather, we live by every word that comes from the mouth of the LORD. For all these forty years your clothes didn’t wear out, and your feet didn’t blister or swell. Think about it: Just as a parent disciplines a child, the LORD your God disciplines you for your own good. “So obey the commands of the LORD your God by walking in his ways and fearing him.