The community never dies: Temurah 15b, 16a
If the community sins, they lose their special status before Gd: Zevachim 41b
Even when the community sins, Gd loves them and minimizes His discussion of their sin: Zevachim 41b
When the Jews are compared to the stars, and when to the sand: Megillah 16a
Complaint of "Kenesset Yisrael [Congregation of Israel]" against "Benei Yisrael [Children of Israel]" for their sins: Pesachim 118b
"Kenesset Yisrael [Congregation of Israel]" praising Mordechai and complaining about King Saul: Megillah 12b-13a
"Kenesset Yisrael [Congregation of Israel]" calling out to Gd: Eruvin 21b
The Community is considered to be extra-careful in its Mitzvot: Pesachim 36a
The Death of a Righteous person is a communal loss; the righteous soul still exists, just not within the community: Megillah 15a
The Jews as a sanctified nation: Niddah 17a
The Jewish Nation as a Barren Woman: Berachot 10a
The Sanctity of communal property which is used for a Mitzvah: Megillah 25b, 26a
Communal Reward and Punishment
The Righteous increase merit of the Community, and the Wicked cause Sin: Yoma 87a
Suffering of an individual for the sake of the Community: Ketuvot 8b
The Merit of a Community, for each individual: Tos. Berachot 6a #3
The power of Communal Repentance, in and out of the 10 Days of Repentance: Rosh HaShanah 17b-18a
One who causes merit for the Community will not have unintentional Sin: Yoma 87a
Impossible to Repent for causing Sin to the Community: Yoma 87a
The fate in Hell of one who causes sin to the community via his body: Rosh HaShanah 17a
Divine Edicts on an Individual and on a Community: Yevamot 105a Forgiveness for a Community, as opposed to forgiveness for an Individual: Berachot 12b