Bread
Deuteronomy 8:2-4
"And you shall remember all the way on which the Lord your God led you these forty years in the wilderness, in order to afflict you, to test you, to know what was in your heart, whether you would keep His commandments or not. He afflicted you and made you hunger and fed you the manna, which you did not know nor did your fathers know, in order to make you know that not on bread alone does the human live, but on every utterance of the Lord’s mouth does the human live.”