Bill and Glenda Davis work alongside the Mutzke family in Heidelberg and are involved in both church and school ministries. Bill's church involvement includes regularly-shared preaching, shared teaching of the adult Sunday school class, holding young adult meetings and biblical counseling.

The Davises both regularly disciple new believers and counsel others. Bill and Glenda began a children's church ministry and were able to involve and hand it over to the Germans. A special joy for Bill is helping men in their teaching and preaching in Sunday school, children's church, youth group, young adult meetings and Wednesday evening meetings. The Davises also work in the organization and execution of the church's summer and winter retreats.

The Davises are extensively involved with outreach ministries through monthly distribution of gospel tracts and other literature in downtown Heidelberg, organizing and participating in school Christmas programs, and monthly nursing home ministries. They oversee hospitality and the logistics of visiting ministry groups or individuals. A special delight for them is involvement in the choir, weekly small church orchestra and special programs.

They consider it a privilege to minister to students of the University of Heidelberg, Germany's oldest University and home to students from many nationalities.

Bill serves on the Christian school board, oversees the building maintenance and purchasing, and supports the Mutzkes by counseling and advising teachers and parents. Glenda and school parents put on the "Teacher Appreciation Banquet" at the beginning of each school year so the graduating class can spoil their teachers royally at least one night of the year.

The Davises have seven children: Their oldest, Heather, married Jason Armstrong on May 15, 2010. They are GFA appointed missionaries to Monterrey, Mexico where Jason will teach at the UCLA.  Jason and Heidi have a little girl, Ana Sophia.  Dawn married Keith Lewis on May 15, 2009. Keith is the Young Adults Pastor (college/career, older singles, young married) at Colonial Hills Baptist Church in Indianapolis, IN. Crystal is married Joel McAllister since June 19, 2010, is . Joel is music director of a new church in North Carolina, while he pursues his M.Div. at BJU.  Heidi is a student at Bob Jones University. William, Anna and Carolina are helping and involved in the ministry on the field.