Corporate Communion Mass Sunday, August 18 10:00 a.m. Mass St. Ambrose Church Try to be at the church by 9:45 a.m. to meet and line up to process into Mass together. We will sit together as a family. This Mass is open to all Brother Knights and their families and to all members of the Ladies Auxiliary. No matter what your parish is, on this day we are all members of St. Ambrose Parish and are to attend Mass as a council family.