|Easton's Bible Dictionary|
Region of Gog, the second of the "sons" of Japheth (Genesis 10:2; 1 Chronicles 1:5). In Ezekiel (38:2; 39:6) it is the name of a nation, probably some Scythian or Tartar tribe descended from Japheth. They are described as skilled horsemen, and expert in the use of the bow. The Latin father Jerome says that this word denotes "Scythian nations, fierce and innumerable, who live beyond the Caucasus and the Lake Maeotis, and near the Caspian Sea, and spread out even onward to India." Perhaps the name "represents the Assyrian Mat Gugi, or `country of Gugu,' the Gyges of the Greeks" (Sayce's Races, etc.).
Int. Standard Bible Encyclopedia
ma'-gog (maghogh; Magog): Named among the sons of Japheth (Genesis 10:2 1 Chronicles 1:5). Ezekiel uses the word as equivalent to "land of Gog" (Ezekiel 38:2; Ezekiel 39:6). Josephus identifies the Magogites with the Scythians (Ant., I, vi, 1). From a resemblance between the names Gog and Gyges (Gugu), king of Lydia, some have suggested that Magog is Lydia; others, however, urge that Magog is probably only a variant of Gog (Sayce in HDB). In the Apocalypse of John, Gog and Magog represent all the heathen opponents of Messiah (Revelation 20:8), and in this sense these names frequently recur in Jewish apocalyptic literature.
John A. Lees
Magog (5 Occurrences)
Revelation 20:8 and he will come out to deceive the nations which are in the four corners of the earth, Gog and Magog, to gather them together to the war; the number of whom is as the sand of the sea. (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)
Genesis 10:2 The sons of Japheth: Gomer, Magog, Madai, Javan, Tubal, Meshech, and Tiras. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
1 Chronicles 1:5 The sons of Japheth: Gomer, and Magog, and Madai, and Javan, and Tubal, and Meshech, and Tiras. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Ezekiel 38:2 Son of man, set your face toward Gog, of the land of Magog, the prince of Rosh, Meshech, and Tubal, and prophesy against him, (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Ezekiel 39:6 I will send a fire on Magog, and on those who dwell securely in the islands; and they shall know that I am Yahweh. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)