" Suffice it to say, the ecclesia, the community of peace, imagined on the Galilean seashore had changed. Like a pebble tossed in a pond with ever expanding ripples, the emergence of Christianity in the urban centers of the Roman Empire forced the Church to adopt new forms and structures for mission and ministry. Jesus’s movement became a thriving principality. At the close of the third century, an organized Church had replaced a disorganized but single-minded community on a mission of peace. "

― C. Andrew Doyle , Vocatio: Imaging a Visible Church