Deuteronomy 10:19

Thou shalt neither vex a stranger, nor oppress him: for ye were strangers in the land of Egypt.

As we have therefore opportunity, let us do good unto all men, especially unto them who are of the household of faith.

There are not found that returned to give glory to God, save this stranger.

But love ye your enemies, and do good, and lend, hoping for nothing again; and your reward shall be great, and ye shall be the children of the Highest: for he is kind unto the unthankful and to the evil.