"And the Lord opened the mouth of the ass" (used colloquially for a foolish remark)
In question: The fool opened his mouth. An expression used to mock someone who said something.
("And the Lord opened the mouth of the donkey, and it said to Balaam, What have I done to you, that you have smitten me three times?" - in the wilderness, as in the wilderness (Balaam's donkey that suddenly began to speak), and so: "Everyone who hears it will laugh at it.../ And the Lord opened the mouth of the donkey/ because it brings forth false arguments/ all of them with no hand of rejection/ and on which there is no foundation in intentions/ and all His words are delusions/ and the claims of the foolish" - Yehuda Al-Harizi (12th century)/ A deed in the memory of the people of the land, and so: "Thus you have spoken, answered the scribe, for you opened the mouth of the donkey and made things that were created on the evening of the Sabbath between the suns" - Abraham Mapu/ Ait Tsavoa, 68)
Translation
Expression (Hebrew)
וַיִּפְתַּח ה' אֶת פִּי הָאָתוֹן
Definition (Hebrew)
בְּהַשְׁאָלָה: הַטִּפֵּשׁ פָּתַח אֶת פִּיו. בִּטּוּי הַנֶּאֱמָר בְּלַעַג עַל אָדָם שֶׁאָמַר דְּבַר מָה.
("וַיִּפְתַּח ה' אֶת פִּי הָאָתוֹן וַתֹּאמֶר לְבִלְעָם, מֶה עָשִׂיתִי לְךָ כִּי הִכִּיתַנִי זֶה שָׁלֹשׁ רְגָלִים"- בַּמִּדְבָּר כב כֹּחַ (אָתוֹן בִּלְעָם שֶׁהֵחֵלָּה פִּתְאוֹם לְדַבֵּר), וְכֵן:"כָּל הַשּׁוֹמֵעַ יִצְחָק לוֹ .../ וַיִּפְתַּח ה' אֶת פִּי הָאָתוֹן/ כִּי הֵבִיא טְעָנוֹת בְּזוּיוֹת/ כֻּלָּם בְּאֶפֶס יָד דְּחוּיוֹת/ וְעַל לֹא יְסוֹד בְּנוּיוֹת/ וְכָל דְּבָרָיו תַּעְתּוּעִים/ וּטְעָנוֹת הַמִּשְׁתַּגְּעִים"- יְהוּדָה אַלְחַרִיזִי (הַמֵּאָה הי"ב )/ מַעֲשֶׂה בְּחַזָּן עַם הָאָרֶץ, וְכֵן:"כֵּן דִּבַּרְתָּ, עָנָה הַסּוֹפֵר, כִּי פְּתִיחַת פִּי הָאָתוֹן מַעֲשֵׂה דְּבָרִים שֶׁנִּבְרְאוּ עֶרֶב שַׁבָּת בֵּין הַשְּׁמָשׁוֹת"- אַבְרָהָם מַאפּוּ/ עַיִט צָבוּעַ, 68)