Kitzur Tefilat Amecha #56-57

[adapted by Rabbi Shmuel Jablon from Rav Aviner's three-volume commentary on the siddur "Tefilat Amecha"]

#56
The most important parts of the Kedusha are when we say the words that the angels say: "Kadosh, Kadosh, Kadosh" and "Baruch Kavod." We actually say these verses three times in davening. Earlier we said them in the first blessing of Shema. Later we will say them in "U-va Le-Tzion". And in the middle we say them in Kedusha. It is important to note that unlike the other times, when we say these verses in the Kedusha we must be standing and in a Minyan. We know we stand to imitate the angels. But why do we need a Minyan? This is because the greatest value of Kedusha comes from being in a community, not from remaining an individual. Often others think that true holiness comes from being alone. But for Jews, this is not the case. Holiness comes from doing Hashem’s will among Klal Yisrael, and doing it to glorify His Name and to be His partner as much as possible. We need to be part of the community as Klal Yisrael is the Nation whose very purpose is to make Hashem’s Name Holy. So when we do a Mitzvah we do it not just as an individual, but as a member of Klal Yisrael. And it is as Klal Yisrael that we give honor to Hashem in this world.

#57
In the Kedusha that last verse “Hashem will rule forever, Your G-d- Tzion, praise G-d.” Rabbi David Avudraham asks why this verse from Tehilim was picked, instead of a verse from the Torah which says Hashem will rule forever. He answers that this verse was picked intentionally as it mentions Tzion, Eretz Yisrael. What is so special about mentioning Tzion in the Kedusha? This is because the great Kiddush Hashem that is discussed in the Kedusha comes by way of Tzion, by way of Eretz Yisrael. In theory Jews could live anywhere. But it is by being together in the Holy Land that we can make a true Kiddush Hashem in this world. Notice that unlike "Kadosh, Kadosh, Kadosh" and "Baruch Kavod", this verse isn’t said by the angels. It is said only by us. We must work to actively build up Eretz Yisrael, to build a true House for Hashem in Tzion. This is how we can make a Kiddush Hashem.