“There are but two developed systems in the world that claim with any show of probability to be purely Biblical. These systems are the Lutheran and the Calvinistic. They possess a common basis in their recognition of the same rule of faith; their profession of the Old Catholic faith as set forth in the three General Creeds; in their acknowledgment of the doctrine of justification by faith and of its great associated doctrines; and they have vast interests, great stakes, mighty bonds of sympathy in common.