[If one says:] “Konam what I benefit from the descendants of Noah” —- he is permitted to [benefit from] Jews, but is forbidden to [benefit from] gentiles; “[Konam] what I benefit from the progeny of Abraham” —- he is forbidden to [benefit from] Jews, but is permitted to [benefit from] gentiles. “[Konam] what I benefit from Jews” —- he must buy for more, and sell for less; “[Konam] what Jews benefit from me” —- he must buy for less and sell for more, if they listen to him; “[Konam] what I benefit from them, and they from me” —- he may benefit gentiles.  [If one says:] “Konam what I benefit from `the uncircumcised' ” —- he is permitted to [benefit from] uncircumcised Jews, but forbidden to [benefit from] circumcised gentiles; “Konam what I benefit from `the circumcised' ” —- he is forbidden [to benefit] from uncircumcised Jews, but is permitted to [benefit from] circumcised gentiles, for the term orlah is used only as a general name for gentiles, as it says: For all the nations are uncircumcised, and the whole house of Israel are uncircumcised in the heart (Jeremiah 9:25), and it says: And this uncircumcised Philistine shall be ... (I Samuel 17:36), and it says: Lest the daughters of the Philistines rejoice, lest the daughters of the uncircumcised be jubilant (II Samuel 1:20).  R' Elazar ben Azariah says: Detestable is the fore-skin, for with it the wicked are disparaged, as it says: For all the nations are uncircumcised (Jeremiah 9:25).  R' Yishmael says: Great is circumcision, for concerning it thirteen covenants were made.  R' Yose says: Great is circumcision which overrides the strict Sabbath. R' Yehoshua ben Korchah says: Great is circumcision, for concerning it even Moses, the righteous one, was not spared for one hour.  R' Nechemiah says: Great is circumcision which overrides negaim.  Rabbi says: Great is circumcision, for [despite] all the precepts which our forefathers Abraham fulfilled, he was not called “complete” until he circumcised [himself], as it says: “Walk before Me and be perfect” (Genesis 17:1).  Another thing: Great is circumcision, for if not for it the Holy One —- Blessed is He —- would not have created His world, as it says: “So says Hashem: If not for My covenant day and night, the laws of heaven and earth I would not have put [in place] (Jeremiah 33:25).