What is the meaning of "Kim'at Oyveihem Achni'a"?
Rashi: In a short time, I would subdue their enemies.
Radak: Yisrael would rule over its enemies, and not they over Yisrael. The prefix Kaf in Kim'at shows the truth of the matter (in a short time), like "keha'Yom Timtza'un" (Shmuel I, 9:13), "Hishava Li ka'Yom" (Bereishis 25:33).
Malbim: Immediately, once they would begin to heed Devar Hashem a little, I would subdue their enemies; this refers to their enemies in the heart.
What is the meaning of "Ashiv Yadi"?
Rashi: I would take my Makah away from you, and put it on them.
Radak: I will return My hand time after time, until I eradicate them. This is like "v'Shavti b'Veis Hashem" (23:6), "v'Shuv Mol" (Yehoshua 5:2), time after time.
Malbim: Regarding Tzareihem, who pain them in deed, I would return My hand to eradicate them, time after time.