What does Deuteronomy 8:3 mean?

And he humbled thee, and suffered thee to hunger, and fed thee with manna, which thou knewest not, neither did thy fathers know; that he might make thee know that man doth not live by bread only, but by everything that proceedeth out of the mouth of Jehovah doth man live.

And he humbled thee, and suffered thee to hunger, and fed thee with manna, which thou knewest not, neither did thy fathers know; that he might make thee know that man doth not live by bread only, but by every word that proceedeth out of the mouth of the Lord doth man live.

And he humbled thee, and suffered thee to hunger, and fed thee with manna, which thou knewest not, neither did thy fathers know; that he might make thee know that man doth not live by bread only, but by everything that proceedeth out of the mouth of Jehovah doth man live.

And he made low your pride and let you be without food and gave you manna for your food, a thing new to you, which your fathers never saw; so that he might make it clear to you that bread is not man's only need, but his life is in every word which comes out of the mouth of the Lord.

`And He doth humble thee, and cause thee to hunger and doth cause thee to eat the manna (which thou hast not known, even thy fathers have not known), in order to cause thee to know that not by bread alone doth man live, but by every produce of the mouth of Jehovah man doth live.

He afflicted thee with want, and gave thee manna for thy food, which neither thou nor thy fathers knew: to shew that not in bread alone doth man live, but in every word that proceedeth from the mouth of God.

And he humbled thee, and suffered thee to hunger, and fed thee with the manna, which thou hadst not known, and which thy fathers knew not; that he might make thee know that man doth not live by bread alone, but by everything that goeth out of the mouth of Jehovah doth man live.