- Congregation Sinai is a Reform congregation of approximately 450 families. We welcome interfaith families. Our religious school has a family education program that helps young parents learn more about Jewish traditions, beliefs and practices. A monthly family service and potluck is a great way to get to know other young families. Minyan Katan is a Shabbat morning program for pre-schoolers and their parents. Outdoor summer services. Rabbi David Cohen, Cantor Rebecca Robins, and the members and staff of Congregation Sinai welcome you to our Reform congregation in Fox Point, a suburb just north of Milwaukee, Wisconsin. We value diversity, spirituality, Jewish education and social responsibility, as well as a love of tradition and a passion for innovation.