Stand on the truth.
He explained the truth. He knew his friend about the true knowledge. He revealed to him true deeds.
("He who makes his place known, and rejoices in his portion, and makes his words a secret... He who bears a burden with his friend, who sells his knees to the power of righteousness, who stands on the truth, who stands on peace" - Avot 6:6, and so on: "And when Moses heard that Aaron stood on the truth. He ceased to be angry and it was good in his eyes" - Malbim and read chapter 4, and so on: "He did not "He rejoices when his friend stumbles in a matter of walking, but rather, he stands firm in the truth" - Minchat Yitzhak, Avot)
Translation
Expression (Hebrew)
הֶעֱמִידוּ עַל הָאֱמֶת
Definition (Hebrew)
הִסְבִּיר אוֹ אֶת הָאֱמֶת.יֵדַע אֶת חֲבֵרוֹ לְגַבֵּי הַמֵּידָע הָאֲמִתִּי. חָשַׂף בְּפָנָיו עֻבְדּוֹת אֲמִתִּיּוֹת.
("הַמַּכִּיר אֶת מְקוֹמוֹ,וְהַשָּׂמֵחַ בְּחֶלְקוֹ,וְהָעוֹשֶׂה סְיָג לִדְבָרָיו...נוֹשֵׂא בְעֹל עִם חֲבֵרוֹ,מַכְרִיעוֹ לְכַף זְכוּת, מַעֲמִידוֹ עַל הָאֱמֶת, מַעֲמִידוֹ עַל הַשָּׁלוֹם"- אָבוֹת ו ו, וְכֵן:"וְלָכֵן כְּשֶׁשָּׁמַע מֹשֶׁה כִּי אַהֲרֹן הֶעֱמִידוּ עַל הָאֱמֶת. חֲדַל לִקְצֹף וְיִטַב בְּעֵינָיו"-מַלְבִּי"ם וַיִּקְרָא פֶּרֶק ד, וְכֵן:"שֶׁלֹּא יִשְׂמַח כְּשֶׁיִּכָּשֵׁל חֲבֵרוֹ בִּדְבַר הֲלָכָה, אֶלָּא אַדְּרַבָּה, יַעֲמִידוּ עַל הָאֱמֶת"- מִנְחַת יִצְחָק, אָבוֹת )