'Adversaries' in the Bible

I will set a fire in Egypt: Sin shall be in great anguish, and No shall be broken up; and Memphis [shall have] adversaries in the daytime.

The nations shall know that the house of Israel went into captivity for their iniquity; because they trespassed against me, and I hid my face from them: so I gave them into the hand of their adversaries, and they fell all of them by the sword.