"Edom is in modern Jewry" The Jewish Encyclopedia, 1925 edition, Vol. 5, Page 41
“Strictly speaking, it is incorrect to call an ancient Israelite a ‘Jew’ or to call a contemporary Jew an ‘Israelite’ or a ‘Hebrew.’” The Jewish Almanac, (New York, NY: Bantam Books, 1980) p. 3.)
"Jews began to call themselves Hebrews and Israelites in 1860″ Encyclopedia Judaica 1971 Vol 10:23
…they [the Edomites] were hereafter no other than [non-Israelite] Jews. Flavius Josephus, The Antiquities of the Jews (Grand Rapids, MI: Dregel Publications, 1960) Book XIII, Chapter IX, Verse 1, p. 279