Revelation 2:8-9

Jews : the people descended from Israel
(31° 46´, 35° 14´); (31° 46´, 35° 14´)

Satan : a person, male (evil angelic),an angel that has rebelled against God

Smyrna : a city Located on the west coast of Asia Minor, it is now called Izmir.
(38° 27´, 27° 9´)