Isaiah 55:2

Wherefore do ye spend money... — Here again the “bread” is that which sustains the true life of the soul. “Labour”-stands for the “earnings of labour.” Israel had given her money for that which was “not-bread,” she is called to accept the true bread for that which is “not-money,” scil., as the next verse shows, for the simple “hearing of faith.” “Fatness,” as in Isaiah 25:6, and the “fatted calf” of Luke 15:23, represents the exuberance of spiritual joy.