Midrash su Isaia 23:7

And to the sons of the concubines, etc.: In the days of Alexander the Macedonian (the Great), the Yishmaelites came to appeal against Israel about the birthright - and with them came two evil families: the Canaanites and the Egyptians. They [the Israelites] said, "Who will go and litigate with them?" G'vi'ah ben Kosem said, "I will go and litigate with them." They said to him, "Be careful that you not ensure the land for them." He said, "I will go and deliberate with them. If I win, so much the better. And, if not, you will say, 'What is this inferior one, that he should stand himself up for us?'" He went and litigated with them. Alexander the Macedonian said to them, "Who is claiming against whom?" The Yishmaelites said, "We are claiming against them, and from their Torah do we come against them: It is written (Deuteronomy 21:17), 'But he will recognize the firstborn the son of the disliked wife.' And by right Yishmael should take a double portion!" G'vi'ah ben Kosem said, "My lord king, may a man not do what he wants for his children?" He said to him, "Yes." And [G'vi'ah] said [back] to him, "And is it not written, 'And Avraham gave all that he had to Yitzhak!'" They said to him, "And where is the deed of sending away, that [proves that] he distributed [from his assets] to [the rest of ] his children?" He said to him, "'And to the sons of Avraham's concubines, Avraham gave gifts.'" And [the Yishmaelites] left from there shamefaced. The Canaanites said, "From their Torah do we come against them. In every place [there], it is written, 'to the Land of Canaan,' 'the Land of Canaan'; they should give us our land!" G'vi'ah ben Kosem said to [Alexander], "My master, the king, does a man not do to his slave what he wants?" He said to him, "Yes." [G'vi'ah] said [back], "What is written? 'Cursed is Canaan, the slave of slaves, etc.' (Genesis 9:25) - behold the land is ours and they are slaves to my lord king!" And [the Canaanites] left from there shamefaced. Egypt said, "From their Torah do we come against them. Sixty multitudes went out from us laden with vessels of silver and vessels of gold, as it is written (Exodus 12:36), 'and they despoiled Egypt'; they should give us our silver and our gold!" G'vi'ah ben Kosem said to him, "My lord king, sixty myriad persons [worked] for them for 210 years - among them were silversmiths and among them were goldsmiths who take for their wage, a dinar a day!" The philosophers (wise men) sat and calculated and did not get to a hundred years before the Land of Egypt [was forfeited] to the treasury [to repay its debt]. And [the Egyptians] left from there shamefaced. [Alexander] sought to go up to Jerusalem. Cuthites went and said to him, "Be careful, as they do not allow you to go into their House of the Holy of Holies (the inner sanctum of the Temple)." And when G'vi'ah ben Kosem realized [this], he made [Alexander] two felt shoes and put on them two jewels worth 20,000 silver [coins]. And once they reached the Temple Mount, [G'vi'ah] said to him, "My master, the king, "Take off your shoe, and shod yourself with two [felt] shoes, since the floor [here] is smooth, so that your feet not slip." And once they reached the Holy of Holies room, [the sages] said to [Alexander], "Thus far we have the right to enter; from here on, we do not have the right to enter." [Alexander] said to [G'vi'ah], "When I leave, I will flatten your forehead [meaning, make him stand upright, as G'vi'ah was a hunchback] (alt. version: your hump)!": He said [back] to him, "If you do that, you will be called an expert physician and take much remuneration!" and he sent them away from Yitzhak, his son: [Avraham] said to [the sons of the concubines], "As far as you can go to the East, go to the East, so that you not get burned by the coal of Yitzhak." But [in the case of] Esav, since he came and grappled with Yaakov, [Esav] took what was [coming to him as a punishment] from under his hand - this is what is written (Isaiah 23:7-8), "Is this your joyous one; in the early days, in its antiquity, its legs brought it to tarry far away. Who advised this on Tsur (Tyre), the crowning, etc." Rabbi Eliezer said, "All times that Tsur is written in Scripture fully (with all of its letters), the verse is speaking about the city-state of Tsur; when it is incomplete (without the letter, vav, as it is here), the verse is speaking about Rome (which is associated with Esav)." "The crowning" - Rabbi Abba said, "They surrounded it in [the formation of] a crown." And Rabbi Yannai said in the name of Rabbi Shimon, the son of Rabbi Yannai, "They surrounded it like a type of [fence made of] thornbushes."