Commentaire sur La Genèse 49:20

מאשר שמנה לחמו OUT OF ASHER COMETH HIS FAT BREAD —The food that will come from the territory of Asher will be fat, for there will be numerous olive-trees in his territory so that it will flow with oil like a fountain. Moses blessed him in a like manner: (Deuteronomy 33:24) “and he will dip his foot in oil”. So we learn in the Treatise of Menachot 85b: once the people of Laodicia were in need of oil. Their agent was able to obtain the very large quantity they required only at a city in Asher, having failed at Jerusalem and other cities.

מאשר שמנה לחמו, a reference to the olive oil pressed from olives grown on his territory, oil used to fry, bake, etc., and generally to improve the taste of the food consumed by the nation. Moses paraphrases Yaakov’s blessing when he says in Deuteronomy 33,24 טובל בשמן רגלו, “that he will dip his foot in oil.”

From Asher will come rich food. Asher provided oil for the Temple service, upon which all prosperity depended, thus it was through Asher that the world enjoyed rich food. Delicacies for (or “of”) the king. Through the provisioning of the Temple Asher indirectly provided for the entire world, just as a king provides for his people. Alternatively, Asher was generous in the giving of charity.