Who puts his fellow to shame publictly has no share in the world to come
He who shames or insults his friend or any person in the presence of others is not worthy of the life of the world to come. A proverb that illustrates the seriousness of the act of insulting a person in many ways.
("He who desecrates the holy places... and reveals to the people in the Torah that is not lawful, and who deceives his fellow Rabbis, even though he has the Torah and good deeds in his hand - he has no portion in the world to come" - Sanhedrin 21:11, and so: "The time has come when the men of communication will cease to deceive the people in the press "And on television"-)
Translation
Expression (Hebrew)
הַמַּלְבִּין פְּנֵי חֲבֵרוֹ בָּרַבִּים אֵין לוֹ חֵלֶק לָעוֹלָם הַבָּא
Definition (Hebrew)
הַמְּבַיֵּשׁ אוֹ מַעֲלִיב אֶת חֲבֵרוֹ אוֹ כָּל אָדָם בְּנוֹכְחוּת אֲחֵרִים אֵינוֹ זוֹכֶה לְחַיֵּי הָעוֹלָם הַבָּא. פִּתְגָּם הַמַּדְגִּישׁ אֶת חֻמְרַת הַמַּעֲשֶׂה שֶׁל הַעֲלָבַת אָדָם בְּרַבִּים.
("הַמְּחַלֵּל אֶת הַקָּדָשִׁים ...וְהַמְגַלֶּה פָּנִים בַּתּוֹרָה שֶׁלֹּא כַהֲלָכָה, וְהַמַּלְבִּין פְּנֵי חֲבֵרוֹ בָּרַבִּים, אַף עַל פִּי שֶׁיֵּשׁ בְּיָדוֹ תּוֹרָה וּמַעֲשִׂים טוֹבִים- אֵין לוֹ חֵלֶק לָעוֹלָם הַבָּא"- סַנְהֶדְרִין צט ע"א, וְכֵן:"הִגִּיעַ הַזְּמַן שֶׁאַנְשֵׁי הַתִּקְשֹׁרֶת יַפְסִיקוּ לְהַלְבִּין פְּנֵי בְּנֵי אָדָם בָּעִתּוֹנוּת וּבַטֵּלֵוִיזְיָה"-)