John Gills Exposition of the Bible Commentary - Genesis 10:3
And the sons of Gomer ,.... Who was the first of the sons of Japheth, three of whose sons are mentioned, and they are as follow: Ashkenaz, and Riphath, and Togarmah ; the first of these seated himself in the lesser Asia, in Pontus and Bithynia, where were some traces of his name in the river Ascanius, and in the Ascanian lake or bay; and also in the lesser Phrygia or Troas, where was a city called Ascania, and where were the Ascanian isles F24 Strabo Geograph. l. 12. p. 387, 388.... read more
Matthew Henry's Complete Commentary - Genesis 10:1-5
Moses begins with Japheth's family, either because he was the eldest, or because his family lay remotest from Israel and had least concern with them at the time when Moses wrote, and therefore he mentions that race very briefly, hastening to give an account of the posterity of Ham, who were Israel's enemies and of Shem, who were Israel's ancestors; for it is the church that the scripture is designed to be the history of, and of the nations of the world only as they were some way or other... read more