The Eternal Law and the Role of Torah Letters in Rejoicing in Mitzvos

This bring about the next part of the verse: “(Lighting up the Menorah) is an eternal law ‘מֵאֵת-from the letters of א through ת’ of the Children of Yisroel,” meaning that the letters of the Torah should cause Aharon to “set up the lamps” of “rejoicing in Mitzvos.”

This power of the letters is because the letters of the Torah are from the level of Moshe (Chochma of Atzilus), and from that level “you (Moshe/Torah) will ‘תְּצַוֶּה-connect’ the Children of Yisroel with Hashem.”

In other words, when a person humbles himself to Hashem, and he learns Torah, those letters of Torah connect him to Hashem and give him the power to have “rejoicing in Mitzvos.”