 The state of Israel grants "Aliyah" (right of return) and citizenship to Jews, and to those with Jewish parents or grandparents who are not considered Jews according to halakha, e.g.people who have a Jewish father but a non-Jewish mother.The old law had excluded any "person who has been a Jew and has voluntarily changed his religion", and an Israeli Supreme Court decision in 1989 had ruled that Messianic Judaism constituted another religion.