Why does the evangelist say, "He opened His mouth"? It would appear that this is superfluous; but it is not. For He also taught without opening His mouth. How did He do this? By His life and His miracles. But now He opens His mouth and teaches.
He taught not only His disciples, but the multitude as well. He begins with the beatitudes, "Blessed are they," just as David began the Psalms with the beatitude, "Blessed is the man" (Ps. 1:1).
