The answer
Origen explains that “the historical Israelites cease to be Israelites, while the believers from the Gentiles become the New Israel. This involves a redefinition of Israel.”1034
Fr. Tadros Yacoub Malaty
Notes
1034 N. R. M. De Lange, Origen and the Jews: Studies in Jewish-Christian Relations in Third-Century Palestine (Cambridge: Cambridge University Press, 1976): p. 80.