The city of Tyre, before Alexander besieged it, as it lived entirely by commerce, and was surrounded by the sea, had to depend on the neighboring countries for a supply of food. The people were accordingly accustomed to purchase grain in Phoenicia, in Judea, and in Egypt, and transport it by their ships to the island. Alexander, in the same manner, when besieging the city, found that he must depend upon the neighboring countries for supplies of food; and he accordingly sent requisitions for such supplies to several places, and, among others, to Judea. The Jews, as Josephus says, refused to send any such supplies, saying that it would be inconsistent with fidelity to Darius, under whose government they were.