כִּ֣י כֹ֥ה יִהְיֶ֛ה בְּקֶ֥רֶב הָאָ֖רֶץ בְּת֣וֹךְ הָֽעַמִּ֑ים כְּנֹ֣קֶף זַ֔יִת כְּעוֹלֵלֹ֖ת אִם־כָּלָ֥ה בָצִֽיר׃
For thus shall it be in the midst of the earth, among the peoples, As at the beating of an olive-tree, As at the gleanings when the vintage is done.
Rashi on Isaiah
For so shall Israel remain in the midst of the peoples, one in a city and two in a family.
Ibn Ezra on Isaiah
בנקף As the shaking. נקף is similar in meaning to ונקף and he shall cut down (10:34).
Rashi on Isaiah
like the cutting of the olive tree that leaves over berries at the tip of the uppermost bough.