כָּל־כְּלִ֞י יוּצַ֤ר עָלַ֙יִךְ֙ לֹ֣א יִצְלָ֔ח וְכָל־לָשׁ֛וֹן תָּֽקוּם־אִתָּ֥ךְ לַמִּשְׁפָּ֖ט תַּרְשִׁ֑יעִי זֹ֡את נַחֲלַת֩ עַבְדֵ֨י יְהוָ֧ה וְצִדְקָתָ֛ם מֵאִתִּ֖י נְאֻם־יְהוָֽה׃ (ס)
No weapon that is formed against thee shall prosper; And every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the LORD, And their due reward from Me, saith the LORD.
Rashi on Isaiah
Any weapon whetted against you Any weapon that they will whet and sharpen for you, i.e., to battle with you.
Ibn Ezra on Isaiah
יוצר עליך That is formed against thee. Shall not prosper, to become what it is destined to be; but it will be broken. יוצר Is formed. It is Hophal, similar in form to יוסר is taken away, (Lev. 4:35).
Rashi on Isaiah
whetted Heb. יוּצַר, an expression similar to (Jos. 5:2) “sharp knives (חַרְבוֹתצֻרִים),” also (Ps. 89:44) “You have also turned the edge of his sword (צוּר חַרְבּוֹ).”