On the day he was to die, Moshe assembled every man, woman, and child of Israel, to bring them into a Covenant with Hashem. The Covenant confirmed the nation as Hashem's chosen People, and applied not only to those present on that day, but to all future Jewish generations.
"You are standing this day, all of you, before Hashem your G-d, your leaders, your tribes, your elders, and your officers all the men of Israel. Your little ones, your wives, your stranger that is in your camp, from the cutter of your wood to the drawer of your water."
So begins Parashat Nitzavim. This passage notes that all members of Israel, from the greatest leader to the simplest laborer. This was dramatic proof that to Hashem each individual , no matter what his station in life, has the same potential for spiritual greatness. No person should ever consider themselves too insignificant to be a partner in the Covenant between the Jews and Hashem.