אַתֶּ֨ם נִצָּבִ֤ים הַיּוֹם֙ כֻּלְּכֶ֔ם לִפְנֵ֖י יְהוָ֣ה אֱלֹהֵיכֶ֑ם רָאשֵׁיכֶ֣ם שִׁבְטֵיכֶ֗ם זִקְנֵיכֶם֙ וְשֹׁ֣טְרֵיכֶ֔ם כֹּ֖ל אִ֥ישׁ יִשְׂרָאֵֽל׃
Stoicie dziś wszyscy przed obliczem Wiekuistego, Boga waszego: naczelnicy pokoleń waszych, starsi, urzędnicy wasi, wszyscy mężowie Israela:
Tiferet Shlomo
Deuteronomy 29:9: It appears to me to say the following about this verse: it says earlier in the Torah [in the previous chapter] that "...until this day, Hashem did not give you a heart to know, ear to hear, eye to see" [Deuteronomy 29:3]. [This means that] the entire service of Moshe Rabbeinu was for the Jewish people to hear all mitzvot from his mouth; his intent was to imbue their hearts with the power of holiness of Hashem with his holy words. The Shechina would speak from his throat, and the goal was that the Jewish people would not be able to transgress anything in the Torah. It says in the Torah, "just like snow comes from heaven and never returns... so, too, My words will not return empty-handed [Isaiah 55:10]. This was the level that Moshe spoke [to Hashem], and Hashem answered him [directly] with a voice and He wanted to place a holiness within him so that [listening to Moshe's words would] be equal to hearing them from Hashem. This is the meaning of the previous verse, "Hashem did not give you a heart to know...": The Jewish people were lifted up to a very lofty level after 4o years [of being in the desert], and it says "...on this day, you've become a people for G-d" [Deuteronomy 27:9]. [This means that] at the end [of the Jewish people's journey], when Moshe Rabbainu would speak, the experience was that of Mount Sinai (--of G-d speaking--) and thus the Torah would never be removed from their mouth. This is also explains the verse: "I heard the voice of my G-d and did according to all that was commanded me" [Deuteronomy 26:14]. "I heard to voice..." means that I did what G-d commanded and I'm listening now just like I did at Mount Sinai; I did all that I'm commanded and I haven't missed anything. [Moses] successfully elevated you so that you can stand before Hashem without any separation. Moshe Rabbainu expresses this covenant with everyone, not just the generation of the desert [Deuteronomy 29:14]. In the future of the generation, the tzaddik of the generation will also be speaking. This is [literally as if] Moshe Rabbainu [is speaking to you], which, [in turn, is as if] you're hearing it from G-d. As it says in the original verse, all will stand before G-d [meaning] in every future generation through the tzaddik.
Mei HaShiloach
"Your heads, your tribal leaders, your elders, and your officers, every person in Israel, your babies, your wives and the ger that is inside your camp, from your woodcutter to your water drawer" Behold it is stated here ten levels, five corresponding to five. And all are as one, included in Israel. Your heads, that is, your wise ones, they correspond to your babies, since taf (baby) comes from the word tipah (drop) that is, one can only find in them a little awareness, and therefore, if one mistake is induced in a person with little awareness that reaches also to the head [of the people], since even in the baby there is a little awareness that comes from the head. "Your tribal leaders", that is, the expansion of the self, since in the root of Yaakov our father, peace be upon him, all Israel is concealed, and they were then one soul, then when they separated into tribes then they expanded into different souls in different generations, and this corresponds to "your wives" since the expansion happen through birth, since when the child is concealed and included in the soul of the parents, there is no expansion possible, only once the child is born then s/he begins to expand. "Your elders" those are the ones who acquired wisdom, and this corresponds to "your ger" - since as many new understanding of the words of Torah that happen in Israel, as many gerim come and join themselves to the people of Israel, since as they join through words of Torah they will come to greater expansion, and so the holiness of Israel expands even in the sould of the other peoples, and they come into Israel. "Your officers" that is, those who have awe, and they correspond to "your woodcutters", since "cutter" comes from anger, and about this the Holy One of Blessing affirms that in every anger present in Israel there is awe. "Every person in Israel" symbolizes the trait of love, and this corresponds to "your water drawer", since water is a symbol of desire, as we know from many places, and all desire and love of Israel is towards the Holy One of Blessing.
Rashi
אתם נצבים YE ARE STANDING THIS DAY [ALL OF YOU BEFORE THE LORD] — This teaches that Moses assembled them in the presence of the Omnipresent on the day of his death, in order to initiate them into a covenant with Him.