Leviticus 19:34

[But] a stranger that dwelleth with you shall be unto you as
one born among you
Especially if a proselyte of righteousness; for then he enjoyed the same privileges, civil and religious, the Israelites did, for there was one law for them both, ( Exodus 12:49 ) : and thou shalt love him as thyself;
and show it by doing all the good things for him they would have done for themselves in like circumstances: for ye were strangers in the land of Egypt:
and therefore knew what hardships such were exposed unto; and it became them to put on bowels of compassion, and show pity to those in a like condition, and particularly consider, as Jarchi suggests, that they were idolaters there also, and therefore ought not to upbraid strangers with their former idolatry: I [am] the Lord your God;
who showed kindness to them when strangers in Egypt, and had brought them out of that land, and therefore ought to obey his commands, and particularly in this instance.