Thus, you too shall lift up the offering from the grain ('terumah') to G‑d (18:28)
From the words "you too" we derive that a person's agent can act in his stead; that "the agent of a person is as he himself."
- The Talmud, Kedushin 41b
When his eldest son, DovBer, reached cheder age, Rabbi Schneur Zalman of Liadi approached one of his colleagues, a fellow disciple of their late Master, the Maggid of Mezeritch. In his characteristic singsong manner, Rabbi Schneur Zalman said:
"I have a mitzvah to fulfill - the commandment 'you shall teach them (the words of Torah) to your children.'1 You, too, have a mitzvah incumbent upon you - the duty to support your family. Let us make an exchange: I will provide you with the means to fulfill your mitzvah, and you will teach my son Torah."
Rabbi Schneur Zalman then gave the young man a crash course in his approach to early childhood education: "One obviously starts with the Aleph-Bet. What is an Aleph? A dot above, a dot below, and a line in between - this is an Alef. And this is the very Alef of Torah: that the Yud above (G‑d) and the Yud2 below (the Jew) are bound by a line of faith."
Lovely, but Aleph is also a sound, a word , a sound communicates, so the line is also the line of communication, keeping the line of communication open between the Yud above and the Yud below Our precious relationship is based on the communication from the Most High , the Torah was communicated. The Rabbi;s communicate the knowledge again all through the use of the letters which are sounds, communication is the first step in the relationship and without communication there is no relationship.. So not just faith but communication, from the word, from the sound comes the faith, it came after.