Due to certain aspects of Orthodox Jewish marital laws, Rabbi Yosef ruled that upon arrival in Israel, the Beta Israel had to undergo a pro forma conversion to Judaism. They had to declare their allegiance to a halachic way of life and the Jewish people, in conformity with practices followed by Orthodox Rabbinical Judaism.
Whereas Judaism, unlike some other religions, discourages conversions, there has always been a certain amount of giddy excitement when a star, from Marilyn Monroe to Sammy Davis Jr., converts to As Judaism attracted adherents, it became both useful and necessary to explain the relationship between Jews and gentiles within Jewish thought. For a full theory of Jewish universalism [that is, a Jewish approach to conversion and proselytization] to develop, the central Jewish understanding of God had to undergo maturation. Whether that means learning Hebrew, observing Shabbat and celebrating holidays, creating a Jewish music playlist, considering aliyah, joining Daf Yomi, or getting involved in a synagogue or a tR5PT.