ציטירנדיקער פּירוש אויף ישעיהו 10:23

Will not withhold as in, “You will not withhold (לא תכלא) ...” Although the word in our verse ends with a ה, and the word cited by Rashi ends with an א, they still mean the same: “will not withhold.” [Rashi is saying that] our verse does not mean “destruction” (כליון), as in “Destruction (כלה) shall come upon them” (18:21), or “For destruction (כלה) and annihilation” (Yeshayahu 10:23), although those words indeed end with a ה like the word in this verse (יכלה). This is because this verse would not be understandable if יכלה meant “destruction.”