John Gills Exposition of the Bible Commentary - Genesis 10:2
The sons of Japheth ,.... Who though mentioned last, the genealogy begins with him, by a figure which rhetoricians call a "chiasm". The posterity of Japheth are those whom Hesiod F26 In Theogonia. often calls ιαπετιονιδης , "Iapetionides", and him ιαπετος , "Iapetus". According to Josephus F1 Antiqu. l. 1. c. 6. sect. 1. , the sons of Japheth inhabited the earth, beginning from the mountains Taurus and Amanus, and then went on in Asia unto the river Tanais, and in Europe unto... 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