Gary Holloway has written a great article about Barton Stone’s different models of unity.
Stone wrote about three models that have historically failed to create and maintain unity among believers.
Book union-unity based on creedal agreement.
Head union-unity based on common understanding of the Bible.
Water union-unity based on immersion into water.
He suggests a fourth model that he calls “Fire Union.” This is unity created and sustained by the transforming power of the Holy Spirit. In Stone’s words, “The members of the body cannot live unless by union with the head-nor can the members of the church be united, unless first united with Christ, the living head. His spirit is the bond of union. Men have devised many plans to unite Christians – all are vain. There is but one effectual plan, which is, that all be united with Christ and walk in him.”
What Stone calls fire union has been called by others “relational union.” Christ-followers are united with each other because they share a common relationship with Christ.
I’d like to suggest another phrase that might help us enter conversations about unity from a different direction–Missional union. This is unity based on our common mission. We are one, not because we share a common worship style or have the same name on our sign or because we agree on the who and what and when and why of baptism, but because we share a common Enemy. Our fight against the forces of darkness in the name of Jesus puts us on the same team whether we want to be or not.
“Master,” said John, “we saw a man driving out demons in your name and we tried to stop him, because he is not one of us.” “Do not stop him,” Jesus said, “for whoever is not against you is for you.” Luke 9:49-50 (NIV)




Connect with Wade