Because of the centrality of bread in the diet, and because we must eat to live, bread is also a symbol for what sustains of life. That is its primary symbolism - bread supports life. Psalm 104:15 says that bread . . . strengthens man's heart, and in other places, bread is said to refresh the heart (Genesis 18:5; Judges 19:5).
Because of this, we can understand that when God promised Israel that He would lead them to a land in which you will eat bread without scarcity (Deuteronomy 8:9), He was talking about more than loaves of wheat and barley products. He meant that He would provide all they needed to sustain life, even to have an abundant physical life. When David says that he has not seen the righteous forsaken, nor his descendants begging bread (Psalm 37:25), he refers to their entire food needs. Bread stands for more than just a baked product made from grain, but for abundant sustenance and the fuel for a good life.
