It's in the Talmud.
The story of Joseph also sums up how Jews see themselves vis the rest of society. In the middle ages they kept referring to Christian gentiles as "Egyptians". Manual labor is a foreign concept for them, where as for gentiles in agrarian societies it is a badge of honor.
Either way, studying Judaism goes a long way in understanding why Jews behave the way they do, even non-religious Jews. The problems begun when they started to take the scriptures literally and forgot the spiritual meaning. Their unique racial narcissism was already very well developed when Christ came to the scene, and it is part of the reason they couldn't accept his message. Not every Jew was like that of course. Paul's hatred of Christians stemmed from his love of Judaism which was obviously build on an understanding of the spiritual meaning of the older religion. When Christ revealed himself to him, he saw that the object of his love is what Christians were actually worshiping, so he converted.
Eitherway, the more "carnal" Jews couldn't accept the new revelation, and conspired to murder Jesus. The problem is that the decline of Judaism had led them starving for spiritual fulfillment, and their hopes at this point lied entirely on the coming of the Messiah. But since the Jews had become carnal, this Messiah was envisioned as an earthly conqueror who would have led to the establishment of a great kingdom and the dominion of Jews over the gentiles. Christ offered them a spiritual kingdom. Some responded to that, and became Christians. Many didn't, and they ended up putting their hopes on Barabbas, the rebel, and it is at that point that Jews because revolutionaries. Believing that the time of the Messiah was at hand, they followed Barabbas in an insurrection against the Romans, which ended up in disaster for them. Eventually their defiance against the Romans and their fanatic zeal forced the hand of the Romans to the point the latter marched right into Jerusalem and tore the temple down. This was a mortal blow to Judaism as it had been up to that point and a new religion was born after that, which was Talmudic Judaism, but this new version of Judaism was imbued with the spirit of revolution, which acted as a latent poison to slowly transform generation of Jews into the duplicitous creatures we know today.
My "awakening" to the so called Jewish question came when i read Weininger, who claimed that the sin of Jews was "smirking at the Good". Many of the philosophic cels here might understand how important this is, for the "Good" in question is nothing but the formal order of the universe, which is the Logos which Christians believe came to earth in the form of Christ. When Jews denied Christ, they rejected Logos itself. This has profound ramifications most people who aren't into philosophy may not understand.
See, most people tend to see the world as reflecting an higher purpose or meaning. This was the view of the world the ancient possessed, one in which everything in life reflected some kind of divine reality. It's why ancient art has this transcendent, cosmic sense of beauty to it. But once you reject this idea, suddenly one becomes a revolutionary for every sense of there being a kind of meaning or formal order to things is seen as a limitation and a kind of oppressive force.
So we have this combination of elements which produced the modern Jews. First, their rebellion against Logos and the order of the universe, which led them to adopt a revolutionary and one might say "criminal" tendency. Second, their racial narcissism, which stems from a literal interpretation of their scriptures. Third, their Messianic expectation, which increasingly shifted on themselves as they slowly abandoned their religion after the Enlightenment. That is, the Jews decided they were going to be their own Messiah, and that they were going to "redeem" the world. This is "Tikkun Olam" as modernized Jews actually understand it. It's how you get people like Barbara Spectre which a lot of people in the alt-right can't help but mention constantly. See, the vast majority of people in gentile societies are mostly passive actors and are only concerned with their immediate well being. Jews are not like that. They have this ideological force that unites and motivates them in engaging in things which in their mind are going to make the world better, but which in truth always end up having the opposite effect since their conception of making things better implies rejecting the formal order of the universe and replace that with a bunch of 2+2=5 type of constructs build on "humanitarian" values and the like.
Now, what makes Jews this unstoppable force is that gentiles are not just the victims of all this, but have gone in a similar direction themselves. Against Jewish "internationalism", gentiles can only respond with modernistic constructs of their own. Rationalism, scientism, nationalism and a religious fundamentalism which ironically is based on the "letter that killeth", the very thing Christ accused Jews of doing in his own day. The decadence of the Romans and the Greeks was not caused by Jews, and Europeans returned to that decadence with the Renaissance and onward. Everything Europeans developed after that was build on no solid metaphysical foundation, and all was needed was for someone to show up and kick all the sand castles down, which is where Jews come into play.
In simple words, gentiles developed a conception of formal order that was excessively "literal", material, rationalistic, and ultimately unable to withstand actual scrutiny. I was watching this episode of Curb Your Enthusiasm a while back which for me was the perfect demonstration of how Jews see gentiles. In this episode, Larry David was listening to this message on his machine where this lady tells him to call him back, but the message cuts off as she is dictating her phone number. Now in the same room there's this other lady who works for the one who left the message and Larry David asks her what the missing numbers are, and she refuses to tell him because she is bound not to reveal her employer's phone number without permission. The situation is of course ridiculous because the first lady quite clearly wanted Larry David to have her number, but the second lady's blind sense of "honor" led her to her ridiculous refusal to give him the number. And this is how Jews understand gentile society, as evidenced by this book:
http://www.jrbooksonline.com/pdf_books/yougentiles.pdf
