Revelation 1:4

Asia : A Roman province on the west side of Asia Minor.
(39° 13´, 32° 43´)

John : a son of Zebedee; younger brother of James; the beloved disciple of Christ,a relative of Annas the high priest,a son of Mary the sister of Barnabas, and surnamed Mark,the father of Simon Peter

Revelation 2:23-24

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

Thyatira : a town in Asia Minor 30 km southeast of Pergamum
(38° 55´, 27° 51´)

Revelation 22:16

David : a son of Jesse of Judah; king of Israel,son of Jesse of Judah; king of Israel