'Oppress the Stranger' in the Bible

If ye will not oppress the stranger, the fatherless and the widow; if ye will not shed innocent blood in this place; if ye will not cleave to strange gods to your own destruction;

Thus the LORD commandeth: Keep equity and righteousness, deliver the oppressed from the power of the violent: do not grieve nor oppress the stranger, the fatherless nor the widow, and shed no innocent blood in this place.