Christianity and Judaism are sister religions.
Jewish militants warned Bar Refaeli not to marry American superstar Leonardo DiCaprio, according to a UK report.
Refaeli, 24, an Israeli, has come under fire in her homeland for alleged failure to honour her patriot duties, which include mandatory national service and paying taxes.
But a nationalist group named Lehava reportedly fears she will dilute her race if she weds DiCaprio. Lehava took to writing to the supermodel, stating: "It is not by chance you were born Jewish. Your grandmother and her grandmother did not dream one of their descendants would remove future generations from the Jewish people. Come to your senses. Don't marry Leonardo DiCaprio."
Reports have DiCaprio and Refaeli back together again after breaking up last year. They started dating in 2005.