When I was a younger man studying at a Talmudic Academy in Jerusalem, I had the great privilege of studying under a great Rabbi and mentor, Rabbi Tziyyon Nadaf. I remember him vividly explaining to us the meaning and purport of the word "sign," (Heb. אות) and why "signs" are given to Israel. He directed our minds and attention to Jeremiah ch. 28 and an oral tradition regarding the whole episode.…