'Manna' in the Bible

He humbled you and let you be hungry, and fed you with manna which you did not know, nor did your fathers know, that He might make you understand that man does not live by bread alone, but man lives by everything that proceeds out of the mouth of the Lord.

In the wilderness He fed you manna which your fathers did not know, that He might humble you and that He might test you, to do good for you in the end.