Harmony Hill Church of God is affiliated with the Church of God Reformation movement whose general offices are located in Anderson, Indiana. This church teaches and practices the doctrines and standards of the early church as taught by Jesus and His disciples as recorded in the New Testament. 

With a strong belief in the doctrine of the unity of all believers,"we reach our hands in fellowship to every blood-washed one". Our members are born into the church through salvation, which makes a person a member of the body of Christ (the church), just as we are born into our earthly family. In the book of St. John, Jesus prayed for His father to make His followers Holy and United and to sanctify them through the Truth and to keep them in the Father's name. We have no membership rolls since "the Lord adds to the church daily those which are being saved".

The mission of the Harmony Hill Church of God is to be servants of Christ through the power of the Holy Spirit to the glory of God, to evangelize, to nurture, to strengthen, and to encourage individuals in the discovery and cultivation of their ministry. Lifting Christ up as the source of hope, we dedicate ourselves to minister to spiritual, emotional, and physical needs, beginning in our home, reaching outward through the community into the world.