Let’s start with the idea that the Jewish people should be a ‘light unto the nations’. This idea is explicitly mentioned in the Book of Isiaiah three times, in the following verses:
49:6 - “It is insufficient that you be a servant for Me [only] to raise up the tribes of Jacob and to restore the ruins of Israel; I will make you a light for the nations, so that My salvation may extend to the ends of the earth.:
60:3 - “Arise! Shine! For your light has arrived, and the glory of Hashem shines upon you. For, behold, darkness may cover the earth and a thick cloud [may cover] the kingdoms, but upon you Hashem will shine, and His glory will be seen upon you. Nations will walk by your light and kings by the brilliance of your shine.”
62:1 - “For Zion’s sake I will not be silent, and for Jerusalem’s sake I will not be still, until her righteousness emanates like a bright light, and her salvation blazes like a torch. Nations will perceive your righteousness and all the kings your honor…”
And then the general idea that the Jewish people should be active in bringing all of mankind back to serve Hashem (and that God actually very much wants that to happen), and that there is a ‘place’ for the righteous non-Jews in the post-Messianic world can be found in the following verses, all from Isiaiah:
45:21 - “There is no other god besides Me; there is no righteous god besides Me and no savior other than Me. Turn to Me be and saved, all ends of the earth, for I am God and there is no other.”
56:1 - “I will bring them to My holy mountain, and I will gladden them in My house of prayer; their elevation offerings and their feast offerings will find favor on my Altar, for My house will be called a house of prayer for all the peoples.”
60:9 - “Then the sons of foreigners will build your walls and their kings will serve you.”
61:5 - “Foreigners will stand and tend your flocks and the sons of the stranger will be your plowmen and your vineyard workers. And you will be called ‘priests of Hashem’; ‘ministers of our God’ will be said of you.” [By other people, i.e. the non-Jews].
Over in Pirkei Avot (the Ethics of the Father), Rabbi Akiva tells us in 3:14 that:
“Beloved is man, for he was created in [God’s] image. It shows an even greater love that it was made known to him that he was created in [God’s] image, as it is written, “For in the image of God, He made man” (Genesis 9:6)”
The Tosfot Yom Tov writing on this verse explains that it ‘refers to all of humankind’ - not just the Jewish people, who are referred to more explicitly by Rabbi Akiva as ‘God’s children.’
Now that we’ve established that it’s standard Jewish thought that righteous non-Jews who believe in the One true God of the Jews have a place in the post-Messianic world, and that God does want the Jewish people to play an active role in being a ‘light unto the nations’, let’s take a more specific look at what some Breslev sources say about the issue of dealing with non-Jews.
Let’s start with Rebbe Nachman, who tells us the following (in Tzaddik):
“The Rebbe said that there are seventy nations and all of them are included under Esau and Ishmael: thirty-five under one and thirty-five under the other. In the future, they will be conquered by two Messiahs, Mashiach the son of Joseph and Mashiach the son of David. There is one Tzaddik who is a combination of the two messiahs.”
From this, we can see that the basic idea is the Jewish Moshiach will ‘conquer’ the nations of the world, and presumably bring them back to belief in the one true God of Israel.
Next, let’s go to Likutey Moharan I:244 where Rebbe Moharan gives a warning to those of us who aren’t on a very high spiritual level (i.e. pretty much everyone…), when it comes to dealing with non-Jews:
“Anyone who intermingles with gentiles, that is, who has business dealings with them, must be on very careful guard that this should not harm him. Otherwise, it’s very easy to be caught in their trap and to distance oneself from one’s Jewishness.”
In other words, as soon as money, or ‘business dealings’ with non-Jews come into the picture, Jews need to be very, very careful to not compromise their Jewishness and spiritual integrity because a ‘bribe blinds the eyes of the wise’.
On this note, Rav Shalom Arush once went to speak to a church in South Africa who’d just bought a very large amount of his emuna books. He got on stage in front of 5,000 people and told them in Hebrew: “You are all fornicators and idol worshipers!” That’s a classic example of not letting money and business dealings compromise your Jewishness and spiritual integrity.
The last thing to quote for now, which I think sums up the position and also includes the deeper kabbalistic underpinnings of why a Jewish Moshiach comes for the benefit of the whole of mankind, comes from Rav Berland’s speech to more than 8,000 people at the Winter Stadium, a few years’ back, when he said:
“When Rebbe Nachman was alive, he stated that he stood as guarantor for the whole world - for all of mankind, including the Jews, the non-Jews and everyone else. Because the Tzaddikim told Hashem to go ahead and create all of mankind, while the angels told Him not to bother, because in the end he would only end up failing, and there was only a miniscule chance of him making Teshuva.
“But I say different! I say that there’s only a miniscule chance of him not making Teshuva, and that’s what this gathering is all about - to encourage everyone, Jews and non-Jews alike, to make Teshuva and to return to their Father in heaven!
“God created everyone in His image, and in every person there is a spark of the Divine, in every Jew and in every non-Jew - the spark of God is in everyone, and we are all created in God’s image. And the whole point of this gathering is to spread the light of Hashem, and the light of Rebbe Nachman, to the whole world, to every Jew and to every non-Jew….
“…As soon as the whole world recognizes Hashem’s greatness, we’ll be able to immediately rebuild the third Temple, and to see the revival of the dead.”
The Jewish people is about Tikkun haolam, or the rectification of the whole world, and bringing the whole world back to God, the Jewish way. That means the non-Jews accept the 7 noachide commandments, stop with all their yoshki, muhammed and booda rubbish, and accept that God is running the world (without any help from anyone else) and that the Torah is true, and the Jewish people are God’s representatives.
That pretty much sums up the authentic Jewish approach that you’ll find in Breslev, and also any other Jewish group that has a deep knowledge of our sources, and a strong grasp of what the whole concept of the Moshiach, and Tikkun haolam is really all about.