In this section we learn about the garments of the Cohen Gadol (high priest). One of them was the mail, a long blue tunic. At its lower edge, the mail It had a combination of decorative bells and pomegranates so that, as he walked, the Cohen Gadol's approach could be heard. So important was this detail of the Cohen Gadol's clothing that the Torah warns that by adding the bells and pomegranates, the Cohen will not die.
The Torah is not merely a history book. The Torah teaches us how to live a full Jewish life. This applies at all times and in all places, so if the Torah speaks of the decorative details of the High Priest's clothing, in addition to informing us how he looked more than 2,000 years ago, it is teaching us how we should serve God today.
Now, what is the function of the bells? Why was it so important that they ring when the High Priest entered the Temple? Apparently, the High Priest's service should be silent, as it is written, "God is not in noise.".
The High Priest was not an ordinary individual. When he entered the Temple, he did so as a representative of the congregation. He "brought in" the congregation with him into the Temple. That is why he needed noisy bells, to bring into the Temple those Jews whose way of serving God was "noisy.".
While "God is not in the noise," when one has not yet reached the level of becoming a vessel for the Divine presence, but is still in the midst of the struggle against evil to save oneself from it, one's mode of service is "noisy." A person facing a dangerous situation acts with "noise"—shouting, grimacing, and gesturing with their hands, etc. The "noisy" mode of service represents the Jew who is at the level of baal teshuvah, who returns to the path of the Torah.
The concept that the Kohen Gadol represents all Jews through his service in the Temple is also indicated by the fact that the bells were located on the lower edge of the mail. These are Jews who are on the lower level. Even they must be brought into the Temple.
That is why the Torah warns that without the bells on his garments, he will "die," because including the entire Jewish people in his service to God, from those at a high level of connection with God to those "at the bottom edge," has repercussions on his own life. His essence is to be the representative of all Jews. If he is not one, he ceases to be Cohen Gadol, therefore, the Torah warns, "he will die.".
Just as in the Jewish people there are Jews at the "lower edge" level of mail, Similarly, in the dimension of time, the generation of "the heels of Messiah," the current generation before the coming of Messiah, is a generation of the "lower edge." The Torah teaches us that, in this generation, the mode of service to God is "noisy.".
In special times, it is possible to be content with "silent" service to God, but in our generation, "noise" is necessary: going out into the streets and loudly proclaiming that we must wear Tefillin, affix a Mezuzah to every door, give Tzedakah, etc. In this way, we will bring the voice of Eliahu HaNaví, the prophet Elijah, who will inform us of the good news of the coming of Messiah.
Extracted from Shulchan Shabbat