Christian Associates of the Shenango Valley will hold its annual Christian Unity Service at 3:30 p.m. Sunday in New Virginia United Methodist Church, 1100 S. Keel Ridge Road, Hermitage.

Dr. Richard Chapple, homiletics professor at Pittsburgh Theological Seminary, will preach.

Jane Bartholomew of Unity Presbyterian Church, Lackawannock Township, will direct an ecumenical choir, which will rehearse at 10 a.m. today and 2 p.m. Sunday in New Virginia United Methodist Church, Hermitage. Singers are welcome to take part if they can attend at least one rehearsal.