לְעֵ֥ת עֶ֙רֶב֙ וְהִנֵּ֣ה בַלָּהָ֔ה בְּטֶ֥רֶם בֹּ֖קֶר אֵינֶ֑נּוּ זֶ֚ה חֵ֣לֶק שׁוֹסֵ֔ינוּ וְגוֹרָ֖ל לְבֹזְזֵֽינוּ׃ (ס)
At eventide behold terror; And before the morning they are not. This is the portion of them that spoil us, And the lot of them that rob us.
Rashi on Isaiah
and behold there is fright Demons come upon the enemy and frighten him.
Ibn Ezra on Isaiah
At eveningtide, that is, when the inhabitants of Jerusalem are afraid of him.24By this remark, I. E. meant perhaps to say that eventide is to be considered as a figurative expression, signifying distress, anxiety.
Rashi on Isaiah
before morning he is no more The enemy is not in the world.