To disobey
He did not obey him. He acted contrary to what he was told to do.
("If you fear the Lord and serve Him and obey His voice and do not rebel against the Lord, then both you and the king who reigns over you will be after the Lord your God" - 1 Samuel 12 Yad (Samuel to the people of Israel), and so: "The men of the city took counsel as to what to do to the multitude of Rabbi David, who had rebelled against the mouths of the wise men" - Sha'i Agnon/Sifuri The Bessath, the defective knife)
Translation
Expression (Hebrew)
הִמְרָה אֶת פִּיו
Definition (Hebrew)
לֹא צִיֵּת לוֹ. עָשָׂה בְּנִגּוּד לְמָה שֶׁנֶּאֱמַר לוֹ לַעֲשׂוֹת.
("אִם תִּירְאוּ אֶת ה' וַעֲבַדְתֶּם אֹתוֹ וּשְׁמַעְתֶּם בְּקֹלוֹ וְלֹא תַמְרוּ אֶת פִּי ה' וִהְיִתֶם גַּם אַתֶּם וְגַם הַמֶּלֶךְ אֲשֶׁר מָלַךְ עֲלֵיכֶם אַחַר ה' אֱלֹהֵיכֶם"- שְׁמוּאֵל א יב יָד ( שְׁמוּאֵל לְעַם יִשְׂרָאֵל), וְכֵן:"נִתְיַעֲצוּ אַנְשֵׁי הָעִיר מָה לַעֲשׂוֹת לְהָרַב ר' דָּוִד שֶׁהַמָּרָה אֶת פִּי הַגְּאוֹנִים"- שַׁ"י עַגְנוֹן/ סִפּוּרֵי הַבֵּעשְׁ"ט, הַסַּכִּין הַפְּגוּמָה)