'Bread' in the Bible

Go your way -- eat your bread with joy, and drink your wine with a merry heart; for God has already accepted your works.

I returned, and saw under the sun, that the race is not to the swift, nor the battle to the strong, neither yet bread to the wise, nor yet riches to men of understanding, nor yet favor to men of skill; but time and chance happen to them all.

Cast your bread on the waters; for you shall find it after many days.