What is the one thing that potentially could destroy the Church? truth be told...CHRISTIANS! While Jjesus said the "gates of hell would not prevail against His Church," sometimes Christians do the most damage to its body through the self-harm of dis-unity. In these scriptures, the Apostle Paul wants the Ephesian Church to live in the axiom of belief and behavior, doctrine and duty, and theology and practicality. TO lean on one side or the other is an imbalance that destroys the Church and our witness to the world.