Shihor was the name of a valley near the Nile River in Egypt known for its production of grain. Alternate translation: "The men traveled on the large sea to transport the grain from Shihor in Egypt" (See: [[rc://en/ta/man/jit/translate-names]])
The "harvest of the Nile" refers to the grain that was harvested near the Nile River and transported on the river and then to Phoenicia. (See: [[rc://en/ta/man/jit/figs-possession]])
Commerce is the activity of buying and selling goods. Here "nations" represents the people. Alternate translation: "you were where people from other nations came to buy and sell goods" (See: [[rc://en/ta/man/jit/figs-metonymy]])