פרקי אבות שיעור חמישי א ו-ח

(ו) יְהוֹשֻׁעַ בֶּן פְּרַחְיָה וְנִתַּאי הָאַרְבֵּלִי קִבְּלוּ מֵהֶם. יְהוֹשֻׁעַ בֶּן פְּרַחְיָה אוֹמֵר, עֲשֵׂה לְךָ רַב, וּקְנֵה לְךָ חָבֵר, וֶהֱוֵי דָן אֶת כָּל הָאָדָם לְכַף זְכוּת:

(ז) נִתַּאי הָאַרְבֵּלִי אוֹמֵר, הַרְחֵק מִשָּׁכֵן רָע, וְאַל תִּתְחַבֵּר לָרָשָׁע, וְאַל תִּתְיָאֵשׁ מִן הַפֻּרְעָנוּת:

(ח) יְהוּדָה בֶן טַבַּאי וְשִׁמְעוֹן בֶּן שָׁטָח קִבְּלוּ מֵהֶם. יְהוּדָה בֶן טַבַּאי אוֹמֵר, אַל תַּעַשׂ עַצְמְךָ כְעוֹרְכֵי הַדַּיָּנִין. וּכְשֶׁיִּהְיוּ בַעֲלֵי דִינִין עוֹמְדִים לְפָנֶיךָ, יִהְיוּ בְעֵינֶיךָ כִרְשָׁעִים. וּכְשֶׁנִּפְטָרִים מִלְּפָנֶיךָ, יִהְיוּ בְעֵינֶיךָ כְזַכָּאִין, כְּשֶׁקִּבְּלוּ עֲלֵיהֶם אֶת הַדִּין:

Pirkei Avot 1:6-8

(6) Joshua ben Perahiah and Nittai the Arbelite received [the oral tradition] from them. Joshua ben Perahiah used to say: appoint for thyself a teacher, and acquire for thyself a companion and judge all men with the scale weighted in his favor.

(7) Nittai the Arbelite used to say: keep a distance from an evil neighbor, do not become attached to the wicked, and do not abandon faith in [divine] retribution.

(8) Judah ben Tabbai and Shimon ben Shetach received [the oral tradition] from them. Judah ben Tabbai said: do not [as a judge] play the part of an advocate; and when the litigants are standing before you, look upon them as if they were [both] guilty; and when they leave your presence, look upon them as if they were [both] innocent, when they have accepted the judgement.

רמב"ם על משנה אבות א׳:ו׳:א׳

(א) עשה לך רב. ר"ל אפי' לא יהיה ראוי להיות לך לרב אבל שים אותו לך לרב עד שתדמה בו שהוא מלמד ויעלה בידך בעבור זה למוד החכמה כי אין למוד האדם מעצמו כלמודו מזולתו שהלמוד מעצמו טוב הוא אבל למודו מזולתו יתקיים בידו יותר והוא יותר מבואר אפי' היה כמוהו בחכמה או למטה הימנו וכן בארו בפירוש זאת המצוה.
ואמר וקנה לך חבר. זכר אותו בלשון קנייה ולא אמר עשה לך חבר או התחבר לאחרים הכונה בזה שצריך לאדם שיקנה אוהב לעצמו שיתקנו בו מעשיו וכל עניניו כמו שאמרו או חברותא או מיתותא ואם לא ימצאהו צריך להשתדל בו בכל לבו ואפילו אם יצטרך שימשכנו לאהבתו עד שישוב אוהב ולא יסור מהמשך תמיד אחר רצונו עד שתתחזק אהבתו כמו שיאמרו בעלי המוסר כשתאהב לא תאהב על מדותיך ואמנם תאהב על מדת אהוביך וכשיכוין כל אחד משני האהובים אל זאת הצואה יהיה כונת כל אחד משניהם להפיק רצון חבירו ויהיה כונת שניהם יחד דבר אחד בלא ספק. ומה טוב מאמר אריסטוטלוס האהוב אחד הוא והאוהבים ג' מינים אוהב תועלת אוהב מנוחה ואוהב מעלה אמנם אוהב תועלת כאהבת שני השותפים ואהבת המלך ומחנהו ואמנם אוהב מנוחה הוא ב' מינים אוהב הנאה ואוהב בטחון אמנם אוהב הנאה כאהבת הזכרים לנקבות וכיוצא בהם. ואמנם אוהב בטחון הוא שיהיה לאדם אוהב תבטח נפשו בו לא ישמר ממנו לא במעשה ולא בדבור ויודיעהו כל עניניו הטוב מהם והמגונה מבלתי שירא ממנו שישיגהו בכל זה חסרון לא אצלו ולא זולתו כי כשיגיע לאדם בטחון באיש זה השעור ימצא מנוחה גדולה בדבריו ובאהבתו הרבה. ואוהב מעלה הוא שיהיה תאות שניהם וכונתם לדבר אחד והוא הטוב וירצה כל אחד להעזר בחבירו בהגיע הטוב ההוא לשניהם יחד וזה האוהב אשר צוה לקנותו והוא כאהבת הרב לתלמיד והתלמיד לרב:

Rambam on Pirkei Avot 1:6:1

(1) "Make for yourself a mentor": He means to say even if he is not fit to be your mentor; still place him upon you as a mentor, so that you can give and take (discuss and argue) with him, and as a result of this the study of wisdom will come to your hand. As the study of a man on his own is good, but his study from someone else will be better established in his hand and it will be more clear - and even if he is like him in wisdom or below him. And so did they elucidate the explanation of this commandment. And he said, "acquire for yourself a friend". He said it with an expression of acquisition and he did not say, "Make for yourself a friend," or "Befriend others." The intention of this is that a person must acquire a friend for himself, so that all of his deeds and all of his matters be refined through him, as they said (Taanit 23a), "Either a friend or death." And if he does not find him, he must make efforts for it with all his heart, and even if he must lead him to his friendship, until he becomes a friend. And [then] he must never let off from following [his friend's] will, until his friendship is firmed up. [It is] as the masters of ethics say, "When you love, do not love according to your traits; but rather love according to the trait of your friend." And when each of the friends has the intention to fulfill the will of his friend, the intention of both of them will be one without a doubt. And how good is the statement of Aristotle, "The friend is one." And there are three types of friends: a friend for benefit, a friend for enjoyment and a friend for virtue. Indeed, a friend for benefit is like the friendship of two [business] partners and the friendship of a king and his retinue; whereas the friendship for enjoyment is of two types - the friend for pleasure and the friend for confidence. Indeed, the friend for pleasure is like the friendship of males and females and similar to it; whereas the friend for confidence is when a man has a friend to whom he can confide his soul. He will not keep [anything] from him - not in action and not in speech. And he will make him know all of his affairs - the good ones and the disgraceful - without fearing from him that any loss will come to him with all of this, not from him and not from another. As when a person has such a level of confidence in a man, he finds great enjoyment in his words and in his great friendship. And a friend for virtue is when the desire of both of them and their intention is for one thing, and that is the good. And each one wants to be helped by his friend in reaching this good for both of them together. And this is the friend which he commanded to acquire; and it is like the love of the master for the student and of the student for the master.

סנהדרין ק״ז ב:ח׳-י״ד

תָּנוּ רַבָּנַן לְעוֹלָם תְּהֵא שְׂמֹאל דּוֹחָה וְיָמִין מְקָרֶבֶת לֹא כֶּאֱלִישָׁע שֶׁדְּחָפוֹ לְגֵחֲזִי בִּשְׁתֵּי יָדַיִם וְלֹא כִּיהוֹשֻׁעַ בֶּן פְּרַחְיָה שֶׁדְּחָפוֹ לְיֵשׁוּ הַנּוֹצְרִי בִּשְׁתֵּי גֵּחֲזִי דִּכְתִיב 'וַיֹּאמֶר נַעֲמָן הוֹאֵל וְקַח כִּכָּרָיִם וַיִּפְרׇץ בּוֹ וַיָּצַר כִּכְּרַיִם כֶּסֶף' וְגוֹ 'וַיֹּאמֶר אֵלָיו אֱלִישָׁע מֵאַיִן גֵּחֲזִי וַיֹּאמֶר לֹא הָלַךְ עַבְדְּךָ אָנֶה וָאָנָה וַיֹּאמֶר אֵלָיו לֹא לִבִּי הָלַךְ כַּאֲשֶׁר הָפַךְ אִישׁ מֵעַל מֶרְכַּבְתּוֹ לִקְרָאתֶךָ הַעֵת לָקַחַת אֶת הַכֶּסֶף וְלָקַחַת בְּגָדִים וְזֵיתִים וּכְרָמִים וְצֹאן וּבָקָר וַעֲבָדִים וְשֶׁפַּחוֹת' וּמִי שְׁקַל כּוּלֵּי הַאי כֶּסֶף וּבְגָדִים הוּא דִּשְׁקַל אָמַר רַבִּי יִצְחָק בְּאוֹתָהּ שָׁעָה הָיָה אֱלִישָׁע יוֹשֵׁב וְדוֹרֵשׁ בִּשְׁמוֹנָה שְׁרָצִים נַעֲמָן שַׂר צְבָא מֶלֶךְ אֲרָם הָיָה מְצוֹרָע אֲמַרָה לֵיהּ הָהִיא רָבִיתָא דְּאִישְׁתְּבַאי מֵאַרְעָא יִשְׂרָאֵל אִי אָזְלַתְּ לְגַבַּי אֱלִישָׁע מַסֵּי לָךְ כִּי אֲתָא אֲמַר לֵיהּ זִיל טְבוֹל בְּיַרְדֵּן אֲמַר לֵיהּ אַחוֹכֵי קָא מְחַיְּיכַתְּ בִּי אָמְרִי לֵיהּ הָנְהוּ דַּהֲווֹ בַּהֲדֵיהּ מַאי נָפְקָא לָךְ מִינַּהּ זִיל נַסִּי אֲזַל וּטְבַל בְּיַרְדְּנָא וְאִיתַּסִּי אֲתָא אַיְיתִי לֵיהּ כֹּל הָנֵי דְּנָקֵיט לָא צְבָא לְקַבּוֹלֵי מִינֵּיהּ גֵּחֲזִי אִיפְּטַר מִקַּמֵּיהּ אֱלִישָׁע אֲזַל שְׁקַל מַאי דִּשְׁקַל וְאַפְקֵיד כִּי אֲתָא חַזְיַיהּ אֱלִישָׁע לְצָרַעַת דַּהֲוָה פָּרְחָה עִלָּוֵיה רֵישֵׁיהּ אֲמַר לֵיהּ רָשָׁע הִגִּיעַ עֵת לִיטּוֹל שְׂכַר שְׁמֹנָה שְׁרָצִים וְצָרַעַת נַעֲמָן תִּדְבַּק בְּךָ וּבְזַרְעֲךָ לְעוֹלָם וַיֵּצֵא מִלְּפָנָיו מְצֹרָע כַּשָּׁלֶג וְאַרְבָּעָה אֲנָשִׁים הָיוּ מְצֹרָעִים פֶּתַח הַשָּׁעַר אָמַר רַבִּי יוֹחָנָן גֵּחֲזִי וּשְׁלֹשֶׁת בָּנָיו יְהוֹשֻׁעַ בֶּן פְּרַחְיָה מַאי הִיא כִּדְקַטְלִינְהוּ יַנַּאי מַלְכָּא לְרַבָּנַן אֲזַל יְהוֹשֻׁעַ בֶּן פְּרַחְיָה וְיֵשׁוּ לַאֲלֶכְּסַנְדְּרִיָּא שֶׁל מִצְרַיִם כִּי הֲוָה שְׁלָמָא שְׁלַח לֵיהּ שִׁמְעוֹן בֶּן שָׁטַח מִינִּי יְרוּשָׁלַיִם עִיר הַקֹּדֶשׁ לִיכִי אָלֶכְּסַנְדְּרִיָּה שֶׁל מִצְרַיִם אֲחוֹתִי בַּעֲלִי שָׁרוּי בְּתוֹכֵךְ וְאָנֹכִי יוֹשֶׁבֶת שׁוֹמֵמָה קָם אֲתָא וְאִתְרְמִי לֵיהּ הָהוּא אוּשְׁפִּיזָא עֲבַדוּ לֵיהּ יְקָרָא טוּבָא אֲמַר כַּמָּה יָפָה אַכְסַנְיָא זוֹ אֲמַר לֵיהּ רַבִּי עֵינֶיהָ טְרוּטוֹת אֲמַר לֵיהּ רָשָׁע בְּכָךְ אַתָּה עוֹסֵק אַפֵּיק אַרְבַּע מְאָה שִׁיפּוּרֵי וְשַׂמְתִּיהָ אֲתָא לְקַמֵּיהּ כַּמָּה זִימְנִין אֲמַר לֵיהּ קַבְּלָן לָא הָוֵי קָא מַשְׁגַּח בֵּיהּ יוֹמָא חַד הֲוָה קָא קָרֵי קְרִיאַת שְׁמַע אֲתָא לְקַמֵּיהּ סָבַר לְקַבּוֹלֵי אַחְוִי לֵיהּ בִּידֵיהּ הוּא סָבַר מִידְחָא דָּחֵי לִי אֲזַל זְקַף לְבֵינְתָּא וְהִשְׁתַּחֲוָה לָהּ אֲמַר לֵיהּ הֲדַר בָּךְ אֲמַר לֵיהּ כָּךְ מְקוּבְּלַנִי מִמְּךָ כָּל הַחוֹטֵא וּמַחְטִיא אֶת הָרַבִּים אֵין מַסְפִּיקִין בְּיָדוֹ לַעֲשׂוֹת תְּשׁוּבָה וְאָמַר מָר יֵשׁוּ כִּישֵּׁף וְהֵסִית וְהִדִּיחַ אֶת יִשְׂרָאֵל...

Sanhedrin 107b:8-14

The Sages taught: Always have the left hand drive sinners away and the right draw them near, so that the sinner will not totally despair of atonement. This is unlike Elisha, who pushed away Gehazi with his two hands and caused him to lose his share in the World-to-Come, and unlike Yehoshua ben Peraḥya, who pushed away Jesus the Nazarene with his two hands. Elisha drove Gehazi away, as it is written: “And Naaman said: Be content, take two talents. And he urged him, and bound two talents of silver in two bags, with two changes of garments” (II Kings 5:23). Naaman offered Gehazi payment for the help Elisha had given him. The verse states: “And Elisha said to him: Where from, Gehazi? And he said: Your servant went nowhere at all. And he said to him: Went not my heart with you, when the man turned back from his chariot to meet you? Is it the time to receive silver and to receive garments, and olive groves, and vineyards, and sheep and cattle, and menservants and maidservants?” (II Kings 5:25-26). The Gemara asks: And did Gehazi take all that? It is merely silver and garments that he took. Rabbi Yitzḥak says: This was the incident involving Gehazi: At that moment, Elisha was sitting and teaching the halakhot of the eight impure creeping animals. Now Naaman, the general of the army of Aram, was a leper. A certain young Jewish woman who had been taken captive from Eretz Yisrael said to him: If you go to Elisha, he will heal you. When Naaman came to him, Elisha said to him: Go immerse in the Jordan. Naaman said to him: Are you mocking me by suggesting that this will cure me? Those companions who were with Naaman said to him: What is the difference to you? Go, try it. Naaman went and immersed in the Jordan and was healed. Naaman came and brought to Elisha all those items that he had taken with him from Aram, and Elisha did not agree to receive them from him. Gehazi took leave from before Elisha and went and took from Naaman what he took, and he deposited them. When Gehazi came, Elisha saw the leprosy that had grown on Gehazi’s head. Elisha said to him: Wicked one! The time has arrived to take your reward for studying the matter of the eight creeping animals. Since the silver Gehazi received was his reward for studying the matter of the eight creeping animals, Elisha enumerated eight items that Gehazi sought to purchase with the silver that he took. Then Elisha said to Gehazi: “The leprosy of Naaman shall cleave to you and to your seed forever. And he went out of his presence a leper as white as snow” (II Kings 5:27). With regard to the verse: “And there were four men afflicted with leprosy at the entrance of the gate” (II Kings 7:3), Rabbi Yoḥanan says: These were Gehazi and his three sons, as he and his descendants were cursed. § What is the incident involving Yehoshua ben Peraḥya? The Gemara relates: When King Yannai was killing the Sages, Yehoshua ben Peraḥya and Jesus, his student, went to Alexandria of Egypt. When there was peace between King Yannai and the Sages, Shimon ben Shataḥ sent a message to Yehoshua ben Peraḥya: From me, Jerusalem, the holy city, to you, Alexandria of Egypt: My sister, my husband is located among you and I sit desolate. The head of the Sages of Israel is out of the country and Jerusalem requires his return. Yehoshua ben Peraḥya understood the message, arose, came, and happened to arrive at a certain inn on the way to Jerusalem. They treated him with great honor. Yehoshua ben Peraḥya said: How beautiful is this inn. Jesus, his student, said to him: But my teacher, the eyes of the innkeeper’s wife are narrow [terutot]. Yehoshua ben Peraḥya said to him: Wicked one! Do you involve yourself with regard to that matter, the appearance of a married woman? He produced four hundred shofarot and ostracized him. Jesus came before Yehoshua ben Peraḥya several times and said to him: Accept our, i.e., my, repentance. Yehoshua ben Peraḥya took no notice of him. One day Yehoshua ben Peraḥya was reciting Shema and Jesus came before him with the same request. Yehoshua ben Peraḥya intended to accept his request, and signaled him with his hand to wait until he completed his prayer. Jesus did not understand the signal and thought: He is driving me away. He went and stood a brick upright to serve as an idol and he bowed to it. Yehoshua ben Peraḥya then said to Jesus: Repent. Jesus said to him: This is the tradition that I received from you: Whoever sins and causes the masses to sin is not given the opportunity to repent. And the Master says: Jesus performed sorcery, incited Jews to engage in idolatry, and led Israel astray. Had Yehoshua ben Peraḥya not caused him to despair of atonement, he would not have taken the path of evil.