'Oppressor' in the Bible

House of David, thus saith Jehovah: Judge with justice in the morning, and deliver him that is spoiled out of the hand of the oppressor, lest my fury go forth like fire and burn, and there be none to quench it, because of the evil of your doings.

Thus saith Jehovah: Execute judgment and righteousness, and deliver the spoiled out of the hand of the oppressor; and do no wrong, do no violence to the stranger, the fatherless, or the widow, and shed not innocent blood in this place.

He hath forsaken his covert as a young lion; for their land is a desolation because of the fierceness of the oppressor, and because of his fierce anger.