Exodus 22:21 - Coke's Commentary on the Holy Bible

Thou shalt neither vex a stranger, &c.— The reason subjoined to enforce this humane and hospitable law, plainly proves the general and extensive meaning of the word stranger: it implies all such persons of any other country, as should sojourn in their land, as they, who were strangers, sojourned in the land of AEypt; where, the inhospitality and the evils they felt were to be remembered as motives to a different behaviour. Note; Strangers must not be oppressed, neither advantage taken of their ignorance, nor prejudice shewn against them in judgment; nor any affront or unkindness offered them. Strangers have a double title to our protection and humanity, as from their circumstances they must be more exposed, and liable to imposition or oppression.