Sefer HaChinukh, Mitzvah 431
Sefer HaChinukh 431:1
The commandment to love converts requires avoiding causing them pain and instead doing them good and granting them kindness, and this is stated in Deuteronomy 10:19, with the reason being that God chose Israel to be a holy nation and guided them toward paths of compassion and mercy.
מִצְוַת אַהֲבַת הַגֵּרִים – שֶׁנִּצְטַוִּינוּ לֶאֱהֹב הַגֵּרִים, כְּלוֹמַר, שֶׁנִּזָּהֵר שֶׁלֹּא לְצַעֵר אוֹתָם, בְּשׁוּם דָּבָר, אֲבָל נַעֲשֶׂה לָהֶם טוֹבָה וְנִגְמֹל אוֹתָם חֶסֶד כְּפִי הָרָאוּי וְהַיְּכֹלֶת. וְהַגֵּרִים הֵם, כָּל מִי שֶׁנִּתְחַבֵּר אֵלֵינוּ מִשְּׁאָר הָאֻמּוֹת שֶׁהִנִּיחַ דָּתוֹ וְנִכְנַס בְּדָתֵנוּ, וַעֲלֵיהֶם נֶאֱמַר (דברים י יט) וַאֲהַבְתֶּם אֶת הַגֵּר וְגוֹ'. וְאַף עַל פִּי שֶׁיִּכְלְלֵהוּ כְּמוֹ כֵן הַצִּוּוּי בְּיִשְׂרָאֵל, שֶׁנֶּאֱמַר עָלָיו וְאָהַבְתָּ לְרֵעֲךָ כָּמוֹךָ (מצוה רמג), שֶׁהֲרֵי גֵּר צֶדֶק בִּכְלַל רֵעֲךָ הוּא, הוֹסִיף לָנוּ הַשֵּׁם בּוֹ מִצְוָה מְיֻחֶדֶת לוֹ בְּאַהֲבָתוֹ, וּכְמוֹ כֵן הַדָּבָר בַּמְּנִיעָה מִלְּרַמּוֹת אוֹתוֹ, שֶׁאַף עַל פִּי שֶׁהָיָה בִּכְלַל וְלֹא תוֹנוּ אִישׁ אֶת עֲמִיתוֹ (מצוה שלח), הוֹסִיף לָנוּ הַכָּתוּב בּוֹ מְנִיעָה מְיֻחֶדֶת לוֹ, בְּאָמְרוֹ וְגֵר לֹא תוֹנֶה (מצוה סג). וְאָמְרוּ בַּגְּמָרָא (ב"מ נט, ב), שֶׁהַמְּאַנֶּה הַגֵּר עוֹבֵר מִשּׁוּם לֹא תוֹנוּ וְגוֹ', וּמִשּׁוּם וְגֵר לֹא תוֹנֶה, וּכְמוֹ כֵן מְבַטֵּל מִצְוַת וְאָהַבְתָּ לְרֵעֲךָ, וּמִצְוַת וַאֲהַבְתֶּם אֶת הַגֵּר. מִשָּׁרְשֵׁי הַמִּצְוָה. כִּי הַשֵּׁם בָּחַר בְּיִשְׂרָאֵל לִהְיוֹת לוֹ לְעַם קָדוֹשׁ וְרָצָה לְזַכּוֹתָם, וְלָכֵן הִדְרִיכָם וְצִוָּם עַל דַּרְכֵי הַחֲנִינָה וְהַחֶמְלָה, וְהִזְהִירָם לְהִתְעַטֵּר בְּכָל מִדָּה חֲמוּדָה וִיקָרָה לִמְצֹא חֵן בְּעֵינֵי כָּל רוֹאֵיהֶם, וְיֹאמְרוּ (יחזקאל לו כ) עַם יְיָ אֵלֶּה. וְכַמָּה הִיא דֶּרֶךְ נְעִימוּת וְחֶמְדָּה לְהִתְחַסֵּד וְלִגְמֹל טוֹבָה לַאֲשֶׁר הִנִּיחַ אֻמָּתוֹ וְכָל מִשְׁפַּחַת בֵּית אָבִיו וְאִמּוֹ, וַיָּבוֹא לַחֲסוֹת תַּחַת כַּנְפֵי אֻמָּה אַחֶרֶת בְּאַהֲבָתוֹ אוֹתָהּ, וּבִבְחִירָתוֹ בָּאֱמֶת וְשִׂנְאַת הַשֶּׁקֶר. וּבִהְיוֹתֵנוּ זוֹכִים לְמִדּוֹת טוֹבוֹת הַלָּלוּ תָּחוּל טוֹבַת הָאֵל עָלֵינוּ וְתִדְבַּק בָּנוּ, וְשׁוּם דָּבָר לֹא תִּמְנָעֶנּוּ מִמֶּנּוּ, כִּי הַטּוֹבָה תִּתְפַּשֵּׁט בַּטּוֹבִים, וְהֶפְכָּהּ בָּרָעִים.
The commandment of loving the strangers (converts): That we were commanded to love the converts, meaning to say that we be careful not to cause them pain in any thing, but [rather to] do them good and grant them kindness according to what is proper and is possible. And converts are anyone who connects with us from the other nations, that leaves his religion and enters into our religion. And about them is it stated (Deuteronomy 10:19), “And you shall love the stranger, etc.” And even though the commandment (Sefer HaChinukh 243) about the Israelite includes him, as it is stated about him (Leviticus 19:18), “and you shall love your neighbor as yourself” — since behold, a righteous convert is included in “your neighbor” — God added for us a specific commandment about his love. And so too is the thing in the prevention against cheating him. As even though he was included in “A man shall not mistreat his countryman” (Leviticus 25:17, Sefer HaChinukh 338), Scripture added a specific prevention about him in its stating, “You shall not wrong a stranger” (Exodus 22:20, Sefer HaChinukh 63). And they said in the Gemara (Bava Metzia 59b) that one who wrongs the convert transgresses because of “[A man] shall not mistreat” and because of “You shall not wrong a stranger.” And so too [with this], he nullifies the commandment of “and you shall love your neighbor” and the commandment of “And you shall love the stranger.” It is from the roots of the commandment that God chose Israel to be a holy nation and wanted to give them merit. And therefore He guided them and commanded them about the ways of grace and compassion and warned them to crown themselves with every beautiful and precious trait to find grace in the eyes of all who see them, [such] that they will say, “These are the people of the Lord” (Ezekiel 36:20). And it is so much the way of pleasantnesses and beauty to show kindness and to grant good to one who leaves his people and all the family of the house of his father and mother and comes to take shelter under the wings of a different nation in his love for it, and in his choosing of truth and his hatred for falsehood. And in our meriting these good traits, the goodness of God will rest upon us and cling to us, and nothing will prevent us from it; as the good will extend to the good ones and the opposite to the bad ones.