King James Bible Dictionary

A small rocky and barren island, one of the group called the "Sporades," in the AEgean Sea. It is mentioned in Scripture only in Revelation 1:9. It was on this island, to which John was banished by the emperor Domitian (A.D. 95), that he received from God the wondrous revelation recorded in his book. This has naturally invested it with the deepest interest for all time. It is now called Patmo. (See JOHN.)

mortal

An island in the Aegean Sea. John an exile on.
Revelation 1:9

(Revelation 1:9) a rugged and bare island in the 'gean Sea, 20 miles south of Samos and 24 west of Asia Minor. It was the scene of the banishment of St. John in the reign of Domitian, A.D. 95. Patmos is divided into two nearly equal parts, a northern and a southern, by a very narrow isthmus where, on the east side are the harbor and the town. On the hill to the south, crowning a commanding height, is the celebrated monastery which bears the name of "John the Divine." Halfway up the descent is the cave or grotto where tradition says that St. John received the Revelation.