Pamela Zummo (plaintiff) and David Zummo (defendant) were divorced and had three children. Pamela had primary physical custody of the children, and David had physical custody every other weekend. Pamela was Jewish, and David was Catholic. The children were raised Jewish, in accordance with an agreement Pamela and David made before getting married. However, upon the couple’s divorce, David did not want to take the children to Sunday School during the weekends he had physical custody of the children. Rather, David wanted to take the children to Catholic religious services. Pamela filed a complaint, seeking to compel David to take the children to Sunday School and prohibit David from taking the children to Catholic Mass. The trial court found in Pamela’s favor on both issues and entered an order to that effect. David appealed.