From 1928 through 1942, children in schools in America learned to know the voice of Walter Damrosch, the host of ‘Music Appreciation Hour' a radio broadcast from NBC.  He taught thousands of boys and girls to know and love music. Classes stopped at a certain hour, the school radio was switched on, and then his familiar voice was heard: "Good morning, my dear children." They then enjoyed a half-hour of beautiful music, and he would tell them the meaning and the message within the music.

One day Mr. Damrosch was asked by the headmaster of a school to come and talk to the boys and girls. He sat on the platform and the children fidgeted, for he was an old man, and they knew that old men very often make long speeches. The headmaster let him introduce himself. Mr. Damrosch stood up and smiled, but no one knew him. Then he said, "Good morning, my dear children," and immediately the whole room was in an uproar. The children clapped and cheered. Mr. Damrosch said, "And why do you cheer? You do not know me." "Yes we do, we know your voice."

If we are sheep, do we know our Shepherd's voice? Do we know with whom we belong?