הל׳ לשון הרע

(לב) וַיֹּצִ֜יאוּ דִּבַּ֤ת הָאָ֙רֶץ֙ אֲשֶׁ֣ר תָּר֣וּ אֹתָ֔הּ אֶל־בְּנֵ֥י יִשְׂרָאֵ֖ל לֵאמֹ֑ר הָאָ֡רֶץ אֲשֶׁר֩ עָבַ֨רְנוּ בָ֜הּ לָת֣וּר אֹתָ֗הּ אֶ֣רֶץ אֹכֶ֤לֶת יוֹשְׁבֶ֙יהָ֙ הִ֔וא וְכׇל־הָעָ֛ם אֲשֶׁר־רָאִ֥ינוּ בְתוֹכָ֖הּ אַנְשֵׁ֥י מִדּֽוֹת׃ (לג) וְשָׁ֣ם רָאִ֗ינוּ אֶת־הַנְּפִילִ֛ים בְּנֵ֥י עֲנָ֖ק מִן־הַנְּפִלִ֑ים וַנְּהִ֤י בְעֵינֵ֙ינוּ֙ כַּֽחֲגָבִ֔ים וְכֵ֥ן הָיִ֖ינוּ בְּעֵינֵיהֶֽם׃ (א) וַתִּשָּׂא֙ כׇּל־הָ֣עֵדָ֔ה וַֽיִּתְּנ֖וּ אֶת־קוֹלָ֑ם וַיִּבְכּ֥וּ הָעָ֖ם בַּלַּ֥יְלָה הַהֽוּא׃ (ב) וַיִּלֹּ֙נוּ֙ עַל־מֹשֶׁ֣ה וְעַֽל־אַהֲרֹ֔ן כֹּ֖ל בְּנֵ֣י יִשְׂרָאֵ֑ל וַֽיֹּאמְר֨וּ אֲלֵהֶ֜ם כׇּל־הָעֵדָ֗ה לוּ־מַ֙תְנוּ֙ בְּאֶ֣רֶץ מִצְרַ֔יִם א֛וֹ בַּמִּדְבָּ֥ר הַזֶּ֖ה לוּ־מָֽתְנוּ׃ (ג) וְלָמָ֣ה ה' מֵבִ֨יא אֹתָ֜נוּ אֶל־הָאָ֤רֶץ הַזֹּאת֙ לִנְפֹּ֣ל בַּחֶ֔רֶב נָשֵׁ֥ינוּ וְטַפֵּ֖נוּ יִהְי֣וּ לָבַ֑ז הֲל֧וֹא ט֦וֹב לָ֖נוּ שׁ֥וּב מִצְרָֽיְמָה׃ (ד) וַיֹּאמְר֖וּ אִ֣ישׁ אֶל־אָחִ֑יו נִתְּנָ֥ה רֹ֖אשׁ וְנָשׁ֥וּבָה מִצְרָֽיְמָה׃ (ה) וַיִּפֹּ֥ל מֹשֶׁ֛ה וְאַהֲרֹ֖ן עַל־פְּנֵיהֶ֑ם לִפְנֵ֕י כׇּל־קְהַ֥ל עֲדַ֖ת בְּנֵ֥י יִשְׂרָאֵֽל׃ (ו) וִיהוֹשֻׁ֣עַ בִּן־נ֗וּן וְכָלֵב֙ בֶּן־יְפֻנֶּ֔ה מִן־הַתָּרִ֖ים אֶת־הָאָ֑רֶץ קָרְע֖וּ בִּגְדֵיהֶֽם׃

Numbers 13:32-14:6

(32) Thus they spread calumnies among the Israelites about the land they had scouted, saying, “The country that we traversed and scouted is one that devours its settlers. All the people that we saw in it are of great size; (33) we saw the Nephilim there—the Anakites are part of the Nephilim—and we looked like grasshoppers to ourselves, and so we must have looked to them.” (1) The whole community broke into loud cries, and the people wept that night. (2) All the Israelites railed against Moses and Aaron. “If only we had died in the land of Egypt,” the whole community shouted at them, “or if only we might die in this wilderness!” (3) “Why is ה' taking us to that land to fall by the sword?” “Our wives and children will be carried off!” “It would be better for us to go back to Egypt!” (4) And they said to one another, “Let us head back for Egypt.” (5) Then Moses and Aaron fell on their faces before all the assembled congregation of Israelites. (6) And Joshua son of Nun and Caleb son of Jephunneh, of those who had scouted the land, rent their clothes

מדרש תנחומא, בראשית ח׳

(א) ‎וַיֹּאמֶר ה' אֱלֹקִים. יְלַמְּדֵנוּ רַבֵּנוּ, הַמְסַפֵּר לָשׁוֹן הָרַע מֶה עָנְשׁוֹ? כָּךְ שָׁנוּ רַבּוֹתֵינוּ, הַמְסַפֵּר לָשׁוֹן הָרַע, חָמוּר מִן הָעוֹשֶׂה מַעֲשֶׂה, שֶׁלֹּא נֶחְתַּם גְּזַר דִּין עַל אֲבוֹתֵינוּ בַּמִּדְבָּר אֶלָּא עַל לָשׁוֹן הָרַע, שֶׁנֶּאֱמַר: וַיְנַסּוּ אֹתִי זֶה עֶשֶׂר פְּעָמִים (במדבר יד, כב).

(ב) אָמַר רַבִּי מָנָא דִּשְׁאָב בְּשֵׁם רַבִּי יְהוֹשֻׁעַ בֶּן לֵוִי, אֵין אָדָם אוֹמֵר לָשׁוֹן הָרַע עַד שֶׁכּוֹפֵר בָּעִקָּר, שֶׁנֶּאֱמַר: אֲשֶׁר אָמְרוּ לִלְשֹׁנֵנוּ נַגְבִּיר שְׂפָתֵינוּ אִתָּנוּ מִי אָדוֹן לָנוּ (תהלים יב, ה).

(ג) רַבָּנָן אַמְרֵי, קָשֶׁה לָשׁוֹן הָרַע, שֶׁהֵבִיא מִיתָה עַל אָדָם הָרִאשׁוֹן, שֶׁעָמַד נָחָשׁ וְאָמַר לְאָדָם וְחַוָּה, כִּי יֹדֵעַ אֱלֹקִים כִּי בְּיוֹם אֲכָלְכֶם מִמֶּנּוּ וְנִפְקְחוּ עֵינֵיכֶם (בראשית ג, ה), שֶׁמִּן הָאִילָן הַזֶּה אָכַל כְּשֶׁבָּרָא אֶת עוֹלָמוֹ, וְכָל אֻמָּן שׂוֹנֵא אֶת בְּנֵי אֻמָּנוּתוֹ, וִהְיִיתֶם כֵּאלֹקִים (בראשית ג, ה). שָׁמְעוּ לוֹ, וְגָרְמוּ מִיתָה לָהֶם וּלְתוֹלְדוֹתֵיהֶם עַד סוֹף כָּל הַדּוֹרוֹת. מִנַּיִן, מִן מַה שֶּׁקָּרְאוּ בְּעִנְיַן הֵן הָאָדָם, וְאֵין הֵן אֶלָּא מִיתָה, שֶׁנֶּאֱמַר: הֵן קָרְבוּ יָמֶיךָ לָמוּת (דברים לא, יד).

Midrash Tanchuma, Bereshit 8

(1) And the Lord said: Behold, man has become like one of us (Gen. 3:22). May our master teach us the punishment inflicted upon one who speaks evil? Thus do our masters teach us: One who speaks evil is punished more severely than one who does an evil act. The punishment inflicted upon our ancestors befell them only because of speaking evil, as it is said: You have put me to proof these ten times, and have not hearkened to My voice (Num. 14:22).

(2) R. Mana of She’ar said in the name of R. Joshua the son of Levi: No man speaks evil until he denies the basic principle of faith (the Oneness of God), as it is said: Our tongue will we make mighty, our lips are with us: who is the Lord over us? (Ps. 12:5).

(3) The rabbis said: Slander is considered so grievous a sin that death was imposed upon Adam because of it. The serpent appeared and told Adam and Eve: “God doth know that in the day ye eat thereof, then your eyes shall be open,and ye shall be as God (Gen. 3:5). It was the fruit of this very tree that He ate when He created this world. Now, every craftsman hates a rival craftsman, but if you should eat of this tree, you too shall become divine.” They listened to him and thus brought death upon themselves and their descendants unto the end of all generations. Whence do we know this? We know it from the words Behold man (Gen. 3:22). The word Behold alludes only to death, as it is written: Behold, thy days approach that thou must die (Deut. 31:14).

דברים כ״ד:ט׳

זָכ֕וֹר אֵ֧ת אֲשֶׁר־עָשָׂ֛ה ה' אֱלֹקֶ֖יךָ לְמִרְיָ֑ם בַּדֶּ֖רֶךְ בְּצֵאתְכֶ֥ם מִמִּצְרָֽיִם׃ (ס)

Deuteronomy 24:9

Remember what your God ה' did to Miriam on the journey after you left Egypt.

משנה תורה, הלכות תשובה ד׳

(א) אַרְבָעָה וְעֶשְׂרִים דְּבָרִים מְעַכְּבִין אֶת התשובה…

(ה) וּמֵהֶן חֲמִשָּׁה דְּבָרִים הָעוֹשֶׂה אוֹתָם יִמָּשֵׁךְ אַחֲרֵיהֶם תָּמִיד וְקָשִׁים הֵם לִפְרשׁ מֵהֶן. לְפִיכָךְ צָרִיךְ אָדָם לְהִזָּהֵר מֵהֶן שֶׁמָּא יִדְבַּק בָּהֶן וְהֵן כֻּלָּן דֵּעוֹת רָעוֹת עַד מְאֹד. וְאֵלּוּ הֵן. רְכִילוּת. וְלָשׁוֹן הָרַע. וּבַעַל חֵמָה. וּבַעַל מַחֲשָׁבָה רָעָה. וְהַמִּתְחַבֵּר לָרָשָׁע מִפְּנֵי שֶׁהוּא לוֹמֵד מִמַּעֲשָׂיו וְהֵן נִרְשָׁמִים בְּלִבּוֹ.

Mishneh Torah, Repentance 4

(1) There are 24 deeds which hold back Teshuvah…

(5) Among the [24] are five [qualities] which have the tendency to lead the transgressor to continue to commit them and which are very difficult to abandon. Therefore, a person should be very careful lest he become attached to them, for they are very bad attributes. They are:
a) gossip;
b) slander;
c) quick-temperedness;
d) a person preoccupied with sinister thoughts;
e) a person who becomes friendly with a wicked person, for he learns from his deeds and they are imprinted on his heart.

תהילים ל״ד:י״ב-ט״ו

(יב) לְֽכוּ־בָ֭נִים שִׁמְעוּ־לִ֑י יִֽרְאַ֥ת ה' אֲלַמֶּדְכֶֽם׃ (יג) מִֽי־הָ֭אִישׁ הֶחָפֵ֣ץ חַיִּ֑ים אֹהֵ֥ב יָ֝מִ֗ים לִרְא֥וֹת טֽוֹב׃ (יד) נְצֹ֣ר לְשׁוֹנְךָ֣ מֵרָ֑ע וּ֝שְׂפָתֶ֗יךָ מִדַּבֵּ֥ר מִרְמָֽה׃ (טו) ס֣וּר מֵ֭רָע וַעֲשֵׂה־ט֑וֹב בַּקֵּ֖שׁ שָׁל֣וֹם וְרׇדְפֵֽהוּ׃

Psalms 34:12-15

(12) Come, my sons, listen to me;
I will teach you what it is to fear the LORD. (13) Who is the man who is eager for life,
who desires years of good fortune? (14) Guard your tongue from evil,
your lips from deceitful speech. (15) Shun evil and do good,
seek amity and pursue it.

Conversation is a uniquely human phenomenon. Analyses of freely forming conver- sations indicate that approximately two thirds of conversation time is devoted to social topics, most of which can be given the generic label gossip…gossip… is a fundamental prerequisite of the human condition. Were we not able to engage in dis- cussions of these issues, we would not be able to sustain the kinds of societies that we do. Gossip in this broad sense plays a number of different roles in the maintenance of socially functional groups through time; although sim- ple social bonding is perhaps the single most important of these roles (and was perhaps the original impetus to the evolution of language), language permits other social functions. Of these, the exchange of information on free rid- ers has undoubtedly become important in the large dispersed societies of modern humans. In some respects, its development may be seen as a natural outgrowth of our social brain, because it exploits the intense interest that we naturally have in the doings of others. That it can be carried to extremes may be a matter for regret, but this should not distract us from the central issue that gossip (in its broadest sense) is the central plank on which human sociality is founded. In reality, the cognitive demands of gossip are the very reason why such large brains evolved in the human lineage.- Dunbar, Review of General Psychology ‘04

ויקרא י״ט:ט״ז

לֹא־תֵלֵ֤ךְ רָכִיל֙ בְּעַמֶּ֔יךָ לֹ֥א תַעֲמֹ֖ד עַל־דַּ֣ם רֵעֶ֑ךָ אֲנִ֖י ה'׃

Leviticus 19:16

Do not deal basely with members of your people. Do not profit by the blood of your fellow [Israelite]: I am ה'.

תלמוד ירושלמי פאה א׳:א׳:מ״א

אַזְהָרָה לְלָשׁוֹן הָרַע מְנַייִן.…אָמַר רִבִּי לָא תַּנִּי רִבִּי יִשְׁמָעֵאל לֹא תֵלֵךְ רָכִיל בְּעַמֶּךָ. זוּ רְכִילוּת לָשׁוֹן הָרַע. תַּנִּי רִבִּי נְחֶמְיָה שֶׁלֹּא תְהֵא כְּרוֹכֵל הַזֶּה מַטְעִין דְּבָרָיו שֶׁל זֶה לְזֶה וּדְבָרָיו שֶׁל זֶה לְזֶה.

Jerusalem Talmud Peah 1:1:41

Where is a warning about calumny?… Rebbi La said that Rebbi Ismaël stated (Lev.19:10): “Do not walk around as slanderer among your people,” that is slandering, calumny. Rebbi Nehemiah stated that you should not be like a trader who carries things from one person to another and vice versa.

משנה תורה, הלכות דעות ז׳:א׳-ב׳

(א) הַמְרַגֵּל בַּחֲבֵרוֹ עוֹבֵר בְּלֹא תַּעֲשֶׂה שֶׁנֶּאֱמַר (ויקרא יט טז) "לֹא תֵלֵךְ רָכִיל בְּעַמֶּיךָ". וְאַף עַל פִּי שֶׁאֵין לוֹקִין עַל דָּבָר זֶה עָוֹן גָּדוֹל הוּא וְגוֹרֵם לַהֲרֹג נְפָשׁוֹת רַבּוֹת מִיִּשְׂרָאֵל. לְכָךְ נִסְמָךְ לוֹ (ויקרא יט טז) "וְלֹא תַעֲמֹד עַל דַּם רֵעֶךָ". צֵא וּלְמַד מָה אֵרַע לְדוֹאֵג הָאֲדֹמִי:

(ב) אֵי זֶהוּ רָכִיל. זֶה שֶׁטּוֹעֵן דְּבָרִים וְהוֹלֵךְ מִזֶּה לָזֶה וְאוֹמֵר כָּךְ אָמַר פְּלוֹנִי כָּךְ וְכָךְ שָׁמַעְתִּי עַל פְּלוֹנִי. אַף עַל פִּי שֶׁהוּא אֱמֶת הֲרֵי זֶה מַחֲרִיב אֶת הָעוֹלָם.

Mishneh Torah, Human Dispositions 7:1-2

(1) A person who collects gossip about a colleague violates a prohibition as [Leviticus 19:16] states: "Do not go around gossiping among your people."
Even though this transgression is not punished by lashes, it is a severe sin and can cause the death of many Jews. Therefore, [the warning]: "Do not stand still over your neighbor's blood" is placed next to it in the Torah [ibid.]. See what happened [because of] Doeg, the Edomite.

(2) Who is a gossiper? One who collects information and [then] goes from person to person, saying: "This is what so and so said;" "This is what I heard about so and so." Even if the statements are true, they bring about the destruction of the world.

שמואל א כ״א-כ״ב

(ב) וַיָּבֹ֤א דָוִד֙ נֹ֔בֶה אֶל־אֲחִימֶ֖לֶךְ הַכֹּהֵ֑ן…וְשָׁ֡ם אִישׁ֩ מֵעַבְדֵ֨י שָׁא֜וּל בַּיּ֣וֹם הַה֗וּא נֶעְצָר֙ לִפְנֵ֣י ה' וּשְׁמ֖וֹ דֹּאֵ֣ג הָאֲדֹמִ֑י אַבִּ֥יר הָרֹעִ֖ים אֲשֶׁ֥ר לְשָׁאֽוּל׃…(ט) וַיַּ֜עַן דֹּאֵ֣ג הָאֲדֹמִ֗י וְה֛וּא נִצָּ֥ב עַל־עַבְדֵֽי־שָׁא֖וּל וַיֹּאמַ֑ר רָאִ֙יתִי֙ אֶת־בֶּן־יִשַׁ֔י בָּ֣א נֹ֔בֶה אֶל־אֲחִימֶ֖לֶךְ בֶּן־אֲחִטֽוּב׃ (י) וַיִּשְׁאַל־לוֹ֙ בַּֽה' וְצֵידָ֖ה נָ֣תַן ל֑וֹ וְאֵ֗ת חֶ֛רֶב גׇּלְיָ֥ת הַפְּלִשְׁתִּ֖י נָ֥תַן לֽוֹ׃ (יא) וַיִּשְׁלַ֣ח הַמֶּ֡לֶךְ לִקְרֹא֩ אֶת־אֲחִימֶ֨לֶךְ בֶּן־אֲחִיט֜וּב הַכֹּהֵ֗ן וְאֵ֨ת כׇּל־בֵּ֥ית אָבִ֛יו הַכֹּהֲנִ֖ים אֲשֶׁ֣ר בְּנֹ֑ב וַיָּבֹ֥אוּ כֻלָּ֖ם אֶל־הַמֶּֽלֶךְ׃ ….(יז) וַיֹּ֣אמֶר הַמֶּ֡לֶךְ לָרָצִים֩ הַנִּצָּבִ֨ים עָלָ֜יו סֹ֥בּוּ וְהָמִ֣יתוּ ׀ כֹּהֲנֵ֣י ה' כִּ֤י גַם־יָדָם֙ עִם־דָּוִ֔ד וְכִ֤י יָֽדְעוּ֙ כִּֽי־בֹרֵ֣חַֽ ה֔וּא וְלֹ֥א גָל֖וּ אֶת־[אׇזְנִ֑י] (אזנו) וְלֹֽא־אָב֞וּ עַבְדֵ֤י הַמֶּ֙לֶךְ֙ לִשְׁלֹ֣חַ אֶת־יָדָ֔ם לִפְגֹ֖עַ בְּכֹהֲנֵ֥י ה'׃ {ס} (יח) וַיֹּ֤אמֶר הַמֶּ֙לֶךְ֙ (לדויג) [לְדוֹאֵ֔ג] סֹ֣ב אַתָּ֔ה וּפְגַ֖ע בַּכֹּהֲנִ֑ים וַיִּסֹּ֞ב (דויג) [דּוֹאֵ֣ג] הָאֲדֹמִ֗י וַיִּפְגַּע־הוּא֙ בַּכֹּ֣הֲנִ֔ים וַיָּ֣מֶת ׀ בַּיּ֣וֹם הַה֗וּא שְׁמֹנִ֤ים וַֽחֲמִשָּׁה֙ אִ֔ישׁ נֹשֵׂ֖א אֵפ֥וֹד בָּֽד׃ (יט) וְאֵ֨ת נֹ֤ב עִיר־הַכֹּֽהֲנִים֙ הִכָּ֣ה לְפִי־חֶ֔רֶב מֵאִישׁ֙ וְעַד־אִשָּׁ֔ה מֵֽעוֹלֵ֖ל וְעַד־יוֹנֵ֑ק וְשׁ֧וֹר וַחֲמ֛וֹר וָשֶׂ֖ה לְפִי־חָֽרֶב׃

I Samuel 21-22

(2) David went to the priest Ahimelech at Nob….(8) Now one of Saul’s officials was there that day, detained before the LORD;^-d his name was Doeg the Edomite, Saul’s chief herdsman….(9) Doeg the Edomite, who was standing among the courtiers of Saul, spoke up: “I saw the son of Jesse come to Ahimelech son of Ahitub at Nob. (10) He inquired of the LORD on his behalf and gave him provisions; he also gave him the sword of Goliath the Philistine.” (11) Thereupon the king sent for the priest Ahimelech son of Ahitub and for all the priests belonging to his father’s house at Nob. They all came to the king, …(17) And the king commanded the guards standing by, “Turn about and kill the priests of the LORD, for they are in league with David; they knew he was running away and they did not inform me.” But the king’s servants would not raise a hand to strike down the priests of the LORD. (18) Thereupon the king said to Doeg, “You, Doeg, go and strike down the priests.” And Doeg the Edomite went and struck down the priests himself; that day, he killed eighty-five men who wore the linen ephod.^-h (19) He put Nob, the town of the priests, to the sword: men and women, children and infants, oxen, asses, and sheep—[all] to the sword.

Often, the surest way to convey misinformation is to tell the strict truth.- Twain

משנה תורה, הלכות דעות ז׳:ב׳-ו׳

יֵשׁ עָוֹן גָּדוֹל מִזֶּה עַד מְאֹד וְהוּא בִּכְלַל לָאו זֶה וְהוּא לָשׁוֹן הָרַע. וְהוּא הַמְסַפֵּר בִּגְנוּת חֲבֵרוֹ אַף עַל פִּי שֶׁאוֹמֵר אֱמֶת. אֲבָל הָאוֹמֵר שֶׁקֶר נִקְרָא מוֹצִיא שֵׁם רַע עַל חֲבֵרוֹ. אֲבָל בַּעַל לָשׁוֹן הָרַע זֶה שֶׁיּוֹשֵׁב וְאוֹמֵר כָּךְ וְכָךְ עָשָׂה פְּלוֹנִי וְכָךְ וְכָךְ הָיוּ אֲבוֹתָיו וְכָךְ וְכָךְ שָׁמַעְתִּי עָלָיו וְאָמַר דְּבָרִים שֶׁל גְּנַאי…

(ג) אָמְרוּ חֲכָמִים שָׁלֹשׁ עֲבֵרוֹת נִפְרָעִין מִן הָאָדָם בָּעוֹלָם הַזֶּה וְאֵין לוֹ חֵלֶק לָעוֹלָם הַבָּא. עֲבוֹדַת כּוֹכָבִים וְגִלּוּי עֲרָיוֹת וּשְׁפִיכוּת דָּמִים. וְלָשׁוֹן הָרַע כְּנֶגֶד כֻּלָּם. …(ד) וְיֵשׁ דְּבָרִים שֶׁהֵן אֲבַק לָשׁוֹן הָרַע. כֵּיצַד. …שֶׁיֹּאמַר שִׁתְקוּ מִפְּלוֹנִי אֵינִי רוֹצֶה לְהוֹדִיעַ מָה אֵרַע וּמֶה הָיָה. וְכַיּוֹצֵא בַּדְּבָרִים הָאֵלּוּ. וְכָל הַמְסַפֵּר בְּטוֹבַת חֲבֵרוֹ בִּפְנֵי שׂוֹנְאָיו הֲרֵי זֶה אֲבַק לָשׁוֹן הָרַע שֶׁזֶּה גּוֹרֵם לָהֶם שֶׁיְּסַפְּרוּ בִּגְנוּתוֹ. …וְכֵן הַמְסַפֵּר בְּלָשׁוֹן הָרַע דֶּרֶךְ שְׂחוֹק וְדֶרֶךְ קַלּוּת רֹאשׁ כְּלוֹמַר שֶׁאֵינוֹ מְדַבֵּר בְּשִׂנְאָה….וְכֵן הַמְסַפֵּר לָשׁוֹן הָרַע דֶּרֶךְ רַמָּאוּת וְהוּא שֶׁיְּסַפֵּר לְתֻמּוֹ כְּאִלּוּ אֵינוֹ יוֹדֵעַ שֶׁדָּבָר זֶה שֶׁדִּבֵּר לָשׁוֹן הָרַע…

(ה) אֶחָד הַמְסַפֵּר בְּלָשׁוֹן הָרַע בִּפְנֵי חֲבֵרוֹ אוֹ שֶׁלֹּא בְּפָנָיו, וְהַמְסַפֵּר דְּבָרִים שֶׁגּוֹרְמִים אִם נִשְׁמְעוּ אִישׁ מִפִּי אִישׁ לְהַזִּיק חֲבֵרוֹ בְּגוּפוֹ אוֹ בְּמָמוֹנוֹ, וַאֲפִלּוּ לְהָצֵר לוֹ אוֹ לְהַפְחִידוֹ, הֲרֵי זֶה לָשׁוֹן הָרַע…

(ו) כָּל אֵלּוּ הֵם בַּעֲלֵי לָשׁוֹן הָרַע שֶׁאָסוּר לָדוּר בִּשְׁכוּנָתָם וְכָל שֶׁכֵּן לֵישֵׁב עִמָּהֶם וְלִשְׁמֹעַ דִּבְרֵיהֶם.

Mishneh Torah, Human Dispositions 7:2-6

There is a much more serious sin than [gossip], which is also included in this prohibition: lashon horah, i.e., relating deprecating facts about a colleague, even if they are true.
[Lashon horah does not refer to the invention of lies;] that is referred to as defamation of character. Rather, one who speaks lashon horah is someone who sits and relates: "This is what so and so has done;" "His parents were such and such;" "This is what I have heard about him," telling uncomplimentary things…

(3) Our Sages said: "There are three sins for which retribution is exacted from a person in this world and, [for which] he is [nonetheless,] denied a portion in the world to come: idol worship, forbidden sexual relations, and murder. Lashon horah is equivalent to all of them."
…(4) There are certain matters which are considered "the dust of lashon horah." What is implied? [For example, a person says:] "Who will tell so and so to continue acting as he does now," or "Do not talk about so and so; I do not want to say what happened," or the like.

Similarly, it is also considered the "dust of lashon horah" when someone speaks favorably about a colleague in the presence of his enemies, for this will surely prompt them to speak disparagingly about him…
Similarly, [to be condemned is] a person who relates lashon horah in frivolity and jest, as if he were not speaking with hatred. This was also mentioned by Solomon in his wisdom [Proverbs 26:18-19]: "As a madman who throws firebrands, arrows, and death and says: 'I am only joking.’”
[Also, to be condemned is] someone who speaks lashon horah about a colleague slyly, pretending to be innocently telling a story without knowing that it is harmful…

(5) [There is no difference] whether one speaks lashon horah about a person in his presence or behind his back. [The statements] of people who relate matters which, when passed from one person to another, will cause harm to a man's person or to his property or will even [merely] annoy him or frighten him are considered as lashon horah...(6) All the above are people who speak lashon horah in whose neighborhood, one is forbidden to dwell. How much more so [is it forbidden] to sit [together] with them and hear their conversation.

חפץ חיים, חלק ראשון: הלכות איסורי לשון הרע, כלל י ב׳:ה׳

ה (י) שֶׁיְּכַוֵּן לְתוֹעֶלֶת, וּכְמוֹ שֶׁנְּבָאֵר לְקַמָּן בְּסָעִיף ד', וְלֹא לֵהָנוֹת, חַס וְשָׁלוֹם, מֵהַפְּגָם הַהוּא, שֶׁהוּא נוֹתֵן בַּחֲבֵרוֹ, וְלֹא מִצַּד שִׂנְאָה, שֶׁיֵּשׁ לוֹ עָלָיו מִכְּבָר.

Chafetz Chaim, Part One, The Prohibition Against Lashon Hara, Principle 10 2:5

e) that he should intend the benefit [of others] and not, G–d forbid, to benefit himself from the taint he ascribes to his friend, and not out of hatred that he bears him from before.

ערכין ט״ז א:א׳

רבה בר רב הונא כל מילתא דמיתאמרא באפי תלתא לית בה משום לישנא בישא מ"ט חברך חברא אית ליה וחברא דחברך חברא אית ליה

Arakhin 16a:1

i.e., Rabba bar Rav Huna says: Any matter that was said in the presence of three people does not have the status of malicious speech if one subsequently repeats it. What is the reason? The reason is that your friend has a friend, and your friend’s friend has a friend. Once the information has been stated in the presence of three people, it can be assumed that it will spread and become public knowledge, as each person will tell someone else.