Among the earliest deviations was a separation between the terms “overseer” (Gr., e·piʹsko·pos) and “older man,” or “elder” (Gr., pre·sbyʹte·ros), so that they were no longer used to refer to the same position of responsibility. Just a decade or so after the death of the apostle John, Ignatius, “bishop” of Antioch, in his letter to the Smyrnaeans, wrote: “See that you all follow the bishop [overseer], as Jesus Christ follows the Father, and the presbytery [body of older men] as if it were the Apostles.” Ignatius thus advocated that each congregation be supervised by one bishop,c or overseer, who was to be recognized as distinct from, and having greater authority than, the presbyters, or older men.

How, though, did this separation come about? Augustus Neander, in his book The History of the Christian Religion and Church, During the Three First Centuries, explains what happened: “In the second century . . . , the standing office of president of the presbyters must have been formed, to whom, inasmuch as he had especially the oversight of every thing, was the name of [e·piʹsko·pos] given, and he was thereby distinguished from the rest of the presbyters.”

The groundwork was thus laid for a clergy class gradually to emerge. About a century later, Cyprian, “bishop” of Carthage, North Africa, was a strong advocate of authority of the bishops—as a group separate from the presbyters (later known as priestsd), the deacons, and the laity. But he did not favor the primacy of one bishop over the others.e