(יז) כָּל מַחֲלֹקֶת שֶׁהִיא לְשֵׁם שָׁמַיִם, סוֹפָהּ לְהִתְקַיֵּם. וְשֶׁאֵינָהּ לְשֵׁם שָׁמַיִם, אֵין סוֹפָהּ לְהִתְקַיֵּם. אֵיזוֹ הִיא מַחֲלֹקֶת שֶׁהִיא לְשֵׁם שָׁמַיִם, זוֹ מַחֲלֹקֶת הִלֵּל וְשַׁמַּאי. וְשֶׁאֵינָהּ לְשֵׁם שָׁמַיִם, זוֹ מַחֲלֹקֶת קֹרַח וְכָל עֲדָתוֹ:
(17) Every dispute that is for the sake of Heaven, will in the end endure; But one that is not for the sake of Heaven, will not endure. Which is the controversy that is for the sake of Heaven? Such was the controversy of Hillel and Shammai. And which is the controversy that is not for the sake of Heaven? Such was the controversy of Korah and all his congregation.
אָמַר רַבִּי אַבָּא אָמַר שְׁמוּאֵל: שָׁלֹשׁ שָׁנִים נֶחְלְקוּ בֵּית שַׁמַּאי וּבֵית הִלֵּל, הַלָּלוּ אוֹמְרִים: הֲלָכָה כְּמוֹתֵנוּ, וְהַלָּלוּ אוֹמְרִים: הֲלָכָה כְּמוֹתֵנוּ. יָצְאָה בַּת קוֹל וְאָמְרָה: אֵלּוּ וָאֵלּוּ דִּבְרֵי אֱלֹהִים חַיִּים הֵן, וַהֲלָכָה כְּבֵית הִלֵּל. וְכִי מֵאַחַר שֶׁאֵלּוּ וָאֵלּוּ דִּבְרֵי אֱלֹהִים חַיִּים, מִפְּנֵי מָה זָכוּ בֵּית הִלֵּל לִקְבּוֹעַ הֲלָכָה כְּמוֹתָן? מִפְּנֵי שֶׁנּוֹחִין וַעֲלוּבִין הָיוּ, וְשׁוֹנִין דִּבְרֵיהֶן וְדִבְרֵי בֵּית שַׁמַּאי, וְלֹא עוֹד אֶלָּא שֶׁמַּקְדִּימִין דִּבְרֵי בֵּית שַׁמַּאי לְדִבְרֵיהֶן.
Rabbi Abba said that Shmuel said: For three years Beit Shammai and Beit Hillel disagreed. These said: The halakha is in accordance with our opinion, and these said: The halakha is in accordance with our opinion. Ultimately, a Divine Voice emerged and proclaimed: Both these and those are the words of the living God. However, the halakha is in accordance with the opinion of Beit Hillel. The Gemara asks: Since both these and those are the words of the living God, why were Beit Hillel privileged to have the halakha established in accordance with their opinion? The reason is that they were agreeable and forbearing, showing restraint when affronted, and when they taught the halakha they would teach both their own statements and the statements of Beit Shammai. Moreover, when they formulated their teachings and cited a dispute, they prioritized the statements of Beit Shammai to their own statements, in deference to Beit Shammai.
There are those who err thinking that world peace will not be built except by means of one form in points of view and qualities. Therefore when they see students of Torah scholars inquiring into wisdom and the knowledge of Torah, and, by means of their searching, the perspectives and approaches multiply, they believe that they thus cause argument and the opposite of peace. Yet truthfully this is not so, for the true peace cannot come into the world except by means of the value of a peace of many faces. A peace of many faces means that all sides and approaches are seen; and it becomes clear how there is a place for them all, each one according to its worth, its place, and its content. And, on the contrary, all positions that appear superfluous or contradictory will be seen, once the truth of wisdom is revealed in all of her many-sidedness, for only by means of the coming together of all the parts and all of the details, and all of the views that seem different, and all of the divided branches, truly by their means the light of truth and righteousness will appear, [along with] the knowledge of God, His reverence and His love, and the light of the Torah of truth. Therefore Torah scholars increase peace, for just as they broaden, explicate, and give birth to new words of Torah, in [locating new] aspects out of different aspects in which there is multiplication and division of themes, in this they increase peace.
L’shem shamayim is an image that speaks of the infinite, an image that invites us to leap towards the heavens and consider the expanse of the universe. Defining it remains as subjective as interpreting the walls of water that escorted the Israelites from slavery to freedom. Some might argue that the definition is inflexible and that l’shem shamayim is constituted through impermeable walls, arguments within a system whose rules are pre-determined. Others might argue that l’shem shamayim can be any argument that advances the dignity of living beings, that speaks to the infinite possibilities of the universe, and that seeks to admit to our world and our communities the expanse of heavenly light.
וזה הוא תנור של עכנאי מאי עכנאי אמר רב יהודה אמר שמואל שהקיפו דברים כעכנא זו וטמאוהו תנא באותו היום השיב רבי אליעזר כל תשובות שבעולם ולא קיבלו הימנואמר להם אם הלכה כמותי חרוב זה יוכיח נעקר חרוב ממקומו מאה אמה ואמרי לה ארבע מאות אמה אמרו לו אין מביאין ראיה מן החרוב חזר ואמר להם אם הלכה כמותי אמת המים יוכיחו חזרו אמת המים לאחוריהם אמרו לו אין מביאין ראיה מאמת המיםחזר ואמר להם אם הלכה כמותי כותלי בית המדרש יוכיחו הטו כותלי בית המדרש ליפול גער בהם רבי יהושע אמר להם אם תלמידי חכמים מנצחים זה את זה בהלכה אתם מה טיבכם לא נפלו מפני כבודו של רבי יהושע ולא זקפו מפני כבודו של ר"א ועדיין מטין ועומדיןחזר ואמר להם אם הלכה כמותי מן השמים יוכיחו יצאתה בת קול ואמרה מה לכם אצל ר"א שהלכה כמותו בכ"מעמד רבי יהושע על רגליו ואמר (דברים ל, יב) לא בשמים היא מאי לא בשמים היא אמר רבי ירמיה שכבר נתנה תורה מהר סיני אין אנו משגיחין בבת קול שכבר כתבת בהר סיני בתורה (שמות כג, ב) אחרי רבים להטות אשכחיה רבי נתן לאליהו א"ל מאי עביד קוב"ה בההיא שעתא א"ל קא חייך ואמר נצחוני בני נצחוני בני
And this is known as the oven of akhnai. The Gemara asks: What is the relevance of akhnai, a snake, in this context? Rav Yehuda said that Shmuel said: It is characterized in that manner due to the fact that the Rabbis surrounded it with their statements like this snake, which often forms a coil when at rest, and deemed it impure. The Sages taught: On that day, when they discussed this matter, Rabbi Eliezer answered all possible answers in the world to support his opinion, but the Rabbis did not accept his explanations from him.After failing to convince the Rabbis logically, Rabbi Eliezer said to them: If the halakha is in accordance with my opinion, this carob tree will prove it. The carob tree was uprooted from its place one hundred cubits, and some say four hundred cubits. The Rabbis said to him: One does not cite halakhic proof from the carob tree. Rabbi Eliezer then said to them: If the halakha is in accordance with my opinion, the stream will prove it. The water in the stream turned backward and began flowing in the opposite direction. They said to him: One does not cite halakhic proof from a stream.Rabbi Eliezer then said to them: If the halakha is in accordance with my opinion, the walls of the study hall will prove it. The walls of the study hall leaned inward and began to fall. Rabbi Yehoshua scolded the walls and said to them: If Torah scholars are contending with each other in matters of halakha, what is the nature of your involvement in this dispute? The Gemara relates: The walls did not fall because of the deference due Rabbi Yehoshua, but they did not straighten because of the deference due Rabbi Eliezer, and they still remain leaning.Rabbi Eliezer then said to them: If the halakha is in accordance with my opinion, Heaven will prove it. A Divine Voice emerged from Heaven and said: Why are you differing with Rabbi Eliezer, as the halakha is in accordance with his opinion in every place that he expresses an opinion?Rabbi Yehoshua stood on his feet and said: It is written: “It is not in heaven” (Deuteronomy 30:12). The Gemara asks: What is the relevance of the phrase “It is not in heaven” in this context? Rabbi Yirmeya says: Since the Torah was already given at Mount Sinai, we do not regard a Divine Voice, as You already wrote at Mount Sinai, in the Torah: “After a majority to incline” (Exodus 23:2). Since the majority of Rabbis disagreed with Rabbi Eliezer’s opinion, the halakha is not ruled in accordance with his opinion. The Gemara relates: Years after, Rabbi Natan encountered Elijah the prophet and said to him: What did the Holy One, Blessed be He, do at that time, when Rabbi Yehoshua issued his declaration? Elijah said to him: The Holy One, Blessed be He, smiled and said: My children have triumphed over Me; My children have triumphed over Me.
אמרו אותו היום הביאו כל טהרות שטיהר ר"א ושרפום באש ונמנו עליו וברכוהו ואמרו מי ילך ויודיעו אמר להם ר"ע אני אלך שמא ילך אדם שאינו הגון ויודיעו ונמצא מחריב את כל העולם כולו
The Sages said: On that day, the Sages brought all the ritually pure items deemed pure by the ruling of Rabbi Eliezer with regard to the oven and burned them in fire, and the Sages reached a consensus in his regard and ostracized him. And the Sages said: Who will go and inform him of his ostracism? Rabbi Akiva, his beloved disciple, said to them: I will go, lest an unseemly person go and inform him in a callous and offensive manner, and he would thereby destroy the entire world.