The Right Attitude Towards the Resident Alien (Leviticus 19:33-34).
“And if a stranger sojourn with you in your land, you shall not do him wrong. The stranger who sojourns with you shall be to you as the home-born among you, and you shall love him as yourself; for you were sojourners in the land of Egypt. I am Yahweh your God.”
The resident alien who lives among them is not to be wronged. Rather he is to be treated as though he were a native of the land, and is to be loved by them as they love themselves (compare Leviticus 19:18). This is because Israel will remember how they were in the same position in the land of Egypt, and will recognise that they must treat him as they would have wished to be treated.
This application of the principle of loving one's neighbour to all who came to live among them is one of the most remarkable teachings of the Old Testament. Had it been carried through it would have been a beacon to the world.