The service will be in celebration of the "Call to Common Mission" agreement signed by both denominations. It will include Eucharist, which will be open to the public.

Co-officiating at the service will be Bishop Robert D. Rowley Jr. of the Northwestern Pennsylvania Diocese of the American Episcopal Church; and Bishop Ralph E. Jones of the Northwestern Pennsylvania Synod of the Evangelical Lutheran Church in America.

The Rev. Arlon K. Stubbe, of Christ Lutheran Church, is host pastor.

A joint choir formed from members of Christ the Redeemer Episcopal and Holy Trinity Lutheran churches in Hermitage; and Christ Evangelical Lutheran and St. John's Episcopal Church, both Sharon, will perform. William Brocklebank, of the host church, will direct.