Talmud sobre Pirkei Avot 4:11
רַבִּי אֱלִיעֶזֶר בֶּן יַעֲקֹב אוֹמֵר, הָעוֹשֶׂה מִצְוָה אַחַת, קוֹנֶה לוֹ פְרַקְלִיט אֶחָד. וְהָעוֹבֵר עֲבֵרָה אַחַת, קוֹנֶה לוֹ קַטֵּגוֹר אֶחָד. תְּשׁוּבָה וּמַעֲשִׂים טוֹבִים, כִּתְרִיס בִּפְנֵי הַפֻּרְעָנוּת. רַבִּי יוֹחָנָן הַסַּנְדְּלָר אוֹמֵר, כָּל כְּנֵסִיָּה שֶׁהִיא לְשֵׁם שָׁמַיִם, סוֹפָהּ לְהִתְקַיֵּם. וְשֶׁאֵינָהּ לְשֵׁם שָׁמַיִם, אֵין סוֹפָהּ לְהִתְקַיֵּם:
R. Eliezer ben Yaakov dice: Si uno hace una mitzvá, adquiere para sí un abogado defensor [es decir, un ángel que habla en su nombre.] Y si uno comete un pecado, adquiere para sí una categoría (un abogado acusador), [es decir, un ángel incriminatorio, (kategor es la sigla en inglés de "kore tigar", "gritando contienda". Sanegor, lo opuesto a kategor es acrónimo de "sone tigar", "odiando la contienda")] R. Yochanan Hasandlar dice: Cada reunión que es por el cielo está destinada a perdurar, y (cada reunión que es) no por el cielo no está destinada a perdurar.
Avot D'Rabbi Natan
He would also say: Comforting mourners, visiting the sick, and acts of kindness bring good to the world.
Avot D'Rabbi Natan
Any debate that is carried out for the sake of Heaven [is destined to endure]. What is an example of a debate that is carried out for the sake of Heaven? [The debate between Hillel and Shammai].
Any gathering that is for the sake of performing the commandments….2See Pirkei Avot 4:11. What is an example of a gathering that is for the sake of performing the commandments? The Men of the Great Assembly. What is an example of a gathering that is not for the sake of performing the commandments? The assembly of the men of the Generation of the Dispersal [those who built the Tower of Babel]. 17.