'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.

The people of the land use oppression and practise robbery; and they vex the poor and needy, and oppress the stranger wrongfully.

I will come and punish you, and I myself will be a swift witness against the witches, against the adulterers, against false swearers: yea, and against those that wrongfully keep back the hireling's duty, which vex the widows and the fatherless, and oppress the stranger, and fear not me, sayeth the LORD of Hosts.