הִנֵּ֤ה הָאָדוֹן֙ יְהוָ֣ה צְבָא֔וֹת מְסָעֵ֥ף פֻּארָ֖ה בְּמַעֲרָצָ֑ה וְרָמֵ֤י הַקּוֹמָה֙ גְּדוּעִ֔ים וְהַגְּבֹהִ֖ים יִשְׁפָּֽלוּ׃
Behold, the Lord, the LORD of hosts, Shall lop the boughs with terror; And the high ones of stature shall be hewn down, And the lofty shall be laid low.
Ibn Ezra on Isaiah
מסעף Shall cut off the branches (סעיפים). Comp. לא תפאר Thou shalt not take off the crown (פאר, Deut. 24:20); ושרשך And he will take away thy root (Ps. 52:7).
Rashi on Isaiah
lops off the branches with a saw Shall lop off its branches, the root of the branches of his trees. ([Mss. read:] Uproots the branches of his trees.) ([Other mss. read:] Cuts off the branches of his trees.)