כֹּ֥ה אָמַ֖ר אֲדֹנָ֣י יְהוִ֑ה לֹ֥א תָק֖וּם וְלֹ֥א תִֽהְיֶֽה׃
thus saith the Lord GOD: It shall not stand, neither shall it come to pass.
Rashi on Isaiah
Neither shall it succeed This plan of theirs, that Judah should be subordinated under them.
Ibn Ezra on Isaiah
תקום Shall stand. Supply זאת העצה this counsel; for יעץ he has taken counsel is mentioned above (ver. 5), and I stated already (5:2) that the verb contains implicitly a verbal noun, when it is not directly mentioned.