COMMENTARY on 4:52
A. Yusuf Ali:

Translation:
They are (men) whom Allah have cursed: And those whom Allah Have cursed, you wilt find, have no one to help. 574
Commentary:

574  The Jews were then seeking the aid of the Makkan Pagans against Muhammad, but far from getting any help from them, they and the Pagans were both overthrown. That was the immediate occasion, but the words have a perfectly general - a universal - meaning.