The worship and organization of the Christian church must be defined by the Hellenistic world in which it took root and emerged victorious over Roman Imperial paganism. The struggle of the early church to maintain a testimony and doctrine that would be faithful to the "Rule of Faith"--which was established by the authority of certain Apostles who had the biggest impact in setting up the missional churches of the first century--and would conform to Jesus Christ's earthly ministry. Eusebia (...