And you shall remember all the way which the Lord your God has led you in the wilderness these forty years, in order to humble you, putting you to the test, to know what was in your heart, whether you would keep His commandments or not.

And He humbled you and let you go hungry, and fed you with the manna which you did not know, nor did your fathers know, in order to make you understand that man shall not live on bread alone, but man shall live on everything that comes out of the mouth of the Lord.

In the wilderness it was He who fed you manna which your fathers did not know, in order to humble you and in order to put you to the test, to do good for you in the end.