בראשית, פרק ל״ד, פסוק כ״ג

To convince their city's residents to undergo circumcision and merge with Jacob's family, the local leaders appeal directly to human greed. Rather than presenting the physical procedure as a difficult compromise, they frame the proposed union as a highly profitable opportunity for an economic and demographic takeover.

In their pitch, the leaders carefully detail the vast wealth of Jacob's family, specifically highlighting their livestock. They draw attention to the large herds grazing in the open fields, which make up the bulk of the family's fortune, alongside individual animals kept inside the home [רמב״ן, הטור הארוך, ביאור יש״ר] or even tamed wild beasts [העמק דבר]. Other perspectives suggest that this is not a division of different animal types, but rather a deliberate repetition meant to emphasize the sheer, massive quantity of livestock the family possesses [רמב״ן, הטור הארוך].

The core of the leaders' argument rests on a simple demographic reality. Because Jacob's family possesses immense wealth but consists of very few people, merging with the much larger local population will inevitably cause all of that wealth to change hands. This transfer of riches is expected to happen either naturally through economic and cultural assimilation [ביאור שטיינזלץ], or gradually through calculated exploitation, fraud, and theft [ביאור יש״ר].

To sell this vision, the leaders use blatant manipulation, completely reversing the promises they had just made to Jacob's family. While they had assured Jacob's sons that they could freely marry and take daughters as they pleased, they now tell their own citizens that the locals will be the ones in total control.

The only condition for securing this endless wealth is a simple agreement. The leaders clarify that they are not doing Jacob's family a favor by allowing them to stay, especially since the family never begged for residency. Instead, the locals merely need to consent to the single demand of circumcision [אוהב גר, ביאור שטיינזלץ]. By agreeing to this one requirement, Jacob's family will settle permanently among them, and all the economic advantages will fall right into the hands of the city's residents [רוב הפרשנים]. Ultimately, however, this promise of great riches turns into a sharp historical irony. The reality completely flips, and it is Jacob's sons who eventually take all the livestock of the city [בכור שור].