Original sentence: The Supreme Court of Israel ruled in  1989 that Messianic Judaism constituted another religion, and that people who had become Messianic Jews were not therefore eligible for Aliyah under the law
Edited sentence: The Supreme Court of Israel ruled in  1989 that Messianic Judaism constituted another religion (it is considered by most Christians and by all movements of Judaism to be a form of Christianity), and that people who had become Messianic Jews were not therefore eligible for Aliyah under the law