Jamieson, Fausset and Brown on Revelation 18:17

17. is come to naught--Greek, "is desolated."

shipmaster--Greek, "steersman," or "pilot."

all the company in ships--A, C, Vulgate, and Syriac read, "Every one who saileth to a place" (B has "... to the place"), every voyager. Vessels were freighted with pilgrims to various shrines, so that in one month (A.D. 1300) two hundred thousand pilgrims were counted in Rome [D'Aaubigne, Histoire de la Reformation]: a source of gain, not only to the Papal see, but to shipmasters, merchants, pilots, &c. These latter, however, are not restricted to those literally "shipmasters," &c., but mainly refer, in the mystical sense, to all who share in the spiritual traffic of apostate Christendom.