The New Winchester Missionary Baptist Church is part of the American Baptist Association (ABA), a fellowship of Baptist churches who have elected to associate with each other for the furtherance of the cause of Christ on earth.

Through their associated efforts, these churches send and support missionaries in many areas of the world. They publish a full curriculum to train their members in the fundamentals of the Christian faith as found in the Bible, especially the New Testament.

These churches also help each other in their ministries to the poor and homeless people through children's homes and other projects.