This entire commandment that I command you today you must diligently observe, so that you may live and increase, and go in and occupy the land that the LORD promised on oath to your ancestors. Remember the long way that the LORD your God has led you these forty years in the wilderness, in order to humble you, testing you to know what was in your heart, whether or not you would keep his commandments. He humbled you by letting you hunger, then by feeding you with manna, with which neither you nor your ancestors were acquainted, in order to make you understand that one does not live by bread alone, but by every word that comes from the mouth of the LORD. The clothes on your back did not wear out and your feet did not swell these forty years. Know then in your heart that as a parent disciplines a child so the LORD your God disciplines you. Therefore keep the commandments of the LORD your God, by walking in his ways and by fearing him. For the LORD your God is bringing you into a good land, a land with flowing streams, with springs and underground waters welling up in valleys and hills, a land of wheat and barley, of vines and fig trees and pomegranates, a land of olive trees and honey, a land where you may eat bread without scarcity, where you will lack nothing, a land whose stones are iron and from whose hills you may mine copper. (Deuteronomy 8:1-9, NRSV)
Man does not live by bread alone. We need more than that. More importantly, we need the word of the Lord. The Lord lead the people through the wilderness, and made it so their feet did not swell after all the walking, and that their clothes did not wear out. Imagine that, clothing that does not wear out.
God gives us what we need when we follow after Him.
Trust in the Lord, and He will supply your every need.