The Middle East was overrun by raiders of other nationalities almost continually so many original Hebrews are likely a blend by now, if they weren't from the beginning. The Ashkenazi Jews now in Israel were originally Khazarians, who converted to Judaism in the 9th century, and who were already a blend of various Turkic and other tribes. This source, https://www.jewishvirtuallibrary.org/the-diaspora, claims that Jews were in their homeland for at least a millenium before the final diaspora due to the Roman conquest in 70 AD.