That is that He commanded us to love converts. And that is His saying, "And you shall love the stranger" (Deuteronomy 10:19). And even though he was included regarding this with [all of] Israel, in His saying, "and you shall love your neighbor as yourself (Leviticus 19:18) - since this stranger is a convert (and a full member of Israel) - however because he entered into our Torah, God added love upon love and designated an additional commandment for him. [This is] as He did with the prohibition of, "And you shall not oppress" (Leviticus 25:17); He [also] said, "And you shall not oppress a stranger" (Exodus 22:20). And it is explained from the language of the Gemara (Bava Metzia 59b) that we are liable by oppressing the convert on account of, "And you shall not oppress," and on account of, "And you shall not oppress a stranger." [So] we are also obligated to love him on account of, "and you shall love your neighbor as yourself," and on account of, "And you shall love the stranger." And this is clear - there is no doubt about it. And I do not know a [single] man from whoever counted the commandments that botched this. And in most [books of] Midrash, they explained that God commanded about the convert, just like He commanded us about Himself - He said, "And you shall love the Lord, your God" (Deuteronomy 6:5), and He said, "And you shall love the stranger." (See Parashat Ekev; Mishneh Torah, Human Dispositions 6.)

You too must befriend the stranger, for you were strangers in the land of Egypt.

Loving a convert who has come to nestle under the wings of the Shechinah [fulfills] two positive commandments: one for he is [also] included among the "neighbors" [whom we are commanded to love] and one because he is a convert and the Torah (Deuteronomy 10:19) states: "and you shall love the converts."[Thus, God] has commanded us concerning the love of a convert just as He has commanded us concerning loving Himself as [Deuteronomy 11:1] states: "and you shall love God, your Lord." The Holy One, blessed be He, Himself, loves converts as [Deuteronomy 10:18] states: "and He loves converts."

You shall not wrong or oppress a stranger, for you were strangers in the land of Egypt.

וגר לא תונה — means, do not vex him with words (referring to the fact that he is a stranger); contrarier in old French Similar is, (Isaiah 49:26) “And I will feed them that vex thee (מוניך) with their own flesh”.

כי גרים הייתם FOR YE WERE STRANGERS — If you vex him he can vex you also by saying to you: “You also descend from strangers”. Do not reproach thy fellow-man for a fault which is also thine (Mekhilta). Wherever גר occurs in Scriptures it signifies a person who has not been born in that land (where he is living) but has come from another country to sojourn there.

And this commandment is practiced in every place and at all times by males and females. And one who transgresses it and causes them pain or is negligent in saving them or saving their money, or treats their honor lightly due to their being converts and not having a helper in the nation, has violated this positive commandment; and his punishment is very great, as behold, the Torah has warned about them in several places. And we should learn from this precious commandment to have mercy on a man who is in a city that is not the land of his birth and the place of the family of his fathers. And we should not pass him by on the road when we find him alone and his helpers are far from him, since we find that the Torah warns us to have mercy on anyone who needs help. And with these traits, we will merit to receive mercy from God, may He be blessed, and the blessings of Heaven will rest upon our heads. And Scripture hints to the reason of the command when it states, “since you were strangers in the Land of Egypt”: It mentions to us that we were previously burnt by this great pain that there is to every man who sees himself among foreign people and in a foreign land. And upon our remembering the great worry of the heart that there is in the matter, and that it already passed over us and that God, in His kindnesses, took us out of there, our mercies for any person like this will overwhelm [us].

When she returned, she found him and saw that he had lowered his head in prayer. She said to him: Arise, you already killed my brother. Meanwhile, the sound of a shofar emerged from the house of Rabban Gamliel to announce that the Nasi had died. Rabbi Eliezer said to her: From where did you know that your brother would die? She said to him: This is the tradition that I received from the house of the father of my father: All the gates of Heaven are apt to be locked, except for the gates of prayer for victims of verbal mistreatment. § The Sages taught: One who verbally mistreats the convert violates three prohibitions, and one who oppresses him in other ways violates two. The Gemara asks: What is different with regard to verbal mistreatment, that three prohibitions are written concerning it: “And you shall neither mistreat a convert” (Exodus 22:20); “And when a convert lives in your land, you shall not mistreat him” (Leviticus 19:33); “And you shall not mistreat, each man his colleague” (Leviticus 25:17), and a convert is included in the category of colleague? With regard to one who also oppresses a convert as well, three prohibitions are written: “And you shall neither mistreat a convert, nor oppress him” (Exodus 22:20); “And you shall not oppress a convert (Exodus 23:9); “And you shall not be to him like a creditor” (Exodus 22:24). This last prohibition is a general prohibition, in which converts are included. Consequently, it is not correct that one who oppresses a convert violates only two prohibitions. Rather, both this one, who verbally mistreats a convert, and that one, who oppresses him, violate three prohibitions. It is taught in a baraita that Rabbi Eliezer the Great says: For what reason did the Torah issue warnings in thirty-six places, and some say in forty-six places, with regard to causing any distress to a convert? It is due to the fact that a convert’s inclination is evil, i.e., he is prone to return to his previous way of living. What is the meaning of that which is written: “And you shall not mistreat a convert nor oppress him, because you were strangers in the land of Egypt” (Exodus 22:20)? We learned in a baraita that Rabbi Natan says: A defect that is in you, do not mention it in another. Since the Jewish people were themselves strangers, they are not in a position to demean a convert because he is a stranger in their midst. And this explains the adage that people say: One who has a person hanged in his family [bidyotkei], does not say to another member of his household: Hang a fish for me, as the mention of hanging is demeaning for that family.

When she returned, she found him and saw that he had lowered his head in prayer. She said to him: Arise, you already killed my brother. Meanwhile, the sound of a shofar emerged from the house of Rabban Gamliel to announce that the Nasi had died. Rabbi Eliezer said to her: From where did you know that your brother would die? She said to him: This is the tradition that I received from the house of the father of my father: All the gates of Heaven are apt to be locked, except for the gates of prayer for victims of verbal mistreatment. § The Sages taught: One who verbally mistreats the convert violates three prohibitions, and one who oppresses him in other ways violates two. The Gemara asks: What is different with regard to verbal mistreatment, that three prohibitions are written concerning it: “And you shall neither mistreat a convert” (Exodus 22:20); “And when a convert lives in your land, you shall not mistreat him” (Leviticus 19:33); “And you shall not mistreat, each man his colleague” (Leviticus 25:17), and a convert is included in the category of colleague? With regard to one who also oppresses a convert as well, three prohibitions are written: “And you shall neither mistreat a convert, nor oppress him” (Exodus 22:20); “And you shall not oppress a convert (Exodus 23:9); “And you shall not be to him like a creditor” (Exodus 22:24). This last prohibition is a general prohibition, in which converts are included. Consequently, it is not correct that one who oppresses a convert violates only two prohibitions. Rather, both this one, who verbally mistreats a convert, and that one, who oppresses him, violate three prohibitions. It is taught in a baraita that Rabbi Eliezer the Great says: For what reason did the Torah issue warnings in thirty-six places, and some say in forty-six places, with regard to causing any distress to a convert? It is due to the fact that a convert’s inclination is evil, i.e., he is prone to return to his previous way of living. What is the meaning of that which is written: “And you shall not mistreat a convert nor oppress him, because you were strangers in the land of Egypt” (Exodus 22:20)? We learned in a baraita that Rabbi Natan says: A defect that is in you, do not mention it in another. Since the Jewish people were themselves strangers, they are not in a position to demean a convert because he is a stranger in their midst. And this explains the adage that people say: One who has a person hanged in his family [bidyotkei], does not say to another member of his household: Hang a fish for me, as the mention of hanging is demeaning for that family.