Pastor Dave Holmlund serves the Presbytery of Philadelphia as a minister-at-large for the sake of developing new congregations in the region.  In the OPC, about half of the presbyteries have such a minister dedicated to church planting, and they are called “Regional Home Missionaries.”  RHMs do not do all the work of church planting, but they can help a great deal through exploring unchurched areas, conducting outreach and evangelism in targeted areas, helping bring new ministries under the oversight of elders in the region, leading those ministries until a permanent church planter is called, and providing encouragement and mentoring to the church planters who serve while remaining a help to these young congregations.