ישעיהו מב:כג פירוש: רש״י

will hearken to pay attention to this, “Who subjected Jacob to plunder?”

for the future Who will hearken and hear something that will stand him in good stead at the end? Jonathan, too, renders: לְסוֹפָא, at the end, and likewise, every לְאָחוֹר in Scripture refers to something that is destined to be.