Hello jimkhong,
I am actually very ignorant about the history of the Church and a lot of other things. I try to dedicate some time when I can to increase my knowledge about Church history and read the CCC and documents of the Church. In all sincerity, I never heard of this before, that goes to show you how ignorant I am. Exactly, how much later?
Actually, I have connected pastor with shepherd as these two words are used interchangeably. And, it reflect how priests are shepherds of a lesser degree than their Bishops - but shepherds nonetheless.
Hi Abba
Sorry for the delay in replying, with my Sunday duties and all. I have found your question intriguing (with no intention of entering into any argument that I believe will be inconclusive) and an opportunity for me to gather what I have learnt (as a purely scholastic exercise and is not intended as a commentary on its relevance to our contemporary Catechicism - that’s a separate exercise). I was hoping to have some references online as it is easier for reference, unfortunately, they were all over the place and require much more research to link them together. So, I had to fall back on the more traditional research from my little library of books, which is more time-consuming and labourius.
What I put out below is limited to the understanding of the priesthood as the middle tier of the Holy Orders, above the order of deacons and below the order of bishops. It does not deal with the concept of the priesthood in broader terms as in the priesthood of the faithful, the broader meaning of priesthood, which also includes bishops, or the liturgical priesthood of the Eucharistic sacrifice. That involves theology and not Church history as below.
I will look at this question from two angle: (i) the tiered structure of the Holy Orders; (ii) presider of the liturgy of the local Christian community.
Structure of the Holy Orders
I have found only two references to Holy Orders in the first century.
1 Clement 42:4:
They preached from district to district, and from city to city, and they appointed their first converts, testing them by the Spirit, to be bishops and deacons of future believers.
There is a reference to presbyters in 45:5 but it seems to a reference to the “epsicopate” mentioned in the preceding quote.
Didache 15:1:
Therefore appoint for yourselves bishops and deacons worthy of the Lord, meek men, and not lovers of money, and truthful and approved, for they also minister to you the ministry of the prophets and teachers.
A quick glance through the above books revealed no other reference to priests, other than the Jewish priesthood. The first reference to a 3-tiered Holy Orders seems to be in Ignatius, who wrote in early in the second century.
One has to be careful with these references though because (i) absence of evidence is not evidence of absence; and (ii) there are times when the term presbyter and bishops are used inter-changably in the first century, 1 Clem 45:5 being an apparent example. Still, when read together with other references, it is rather persuasive that the Order of priests (as an order distinct from bishops) came later.
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Bishops’ adminstrative units*
As Jewish communities in the Roman Empire was town-based, the first Christian communities were also based in towns, where the Sabbath worships are held and to which the few rural Christians will join the urban Christians each Sunday to celebrate the breaking of bread.
When Christianity expanded to smaller towns, a need arose to determine the boundaries between churches, and the then-existing civil delineation was quickly adopted. From there also grew the different ranks of bishops arising from the size of the town or city of the bishop and the number of missions they send out to the surounding towns. (p.12 Christian Worship: It’s Origin and Evolution, Mgr Duchesne)
A related question is how did the bishop gets elected, which is not comprehensively documented until 3rd century by Hippolytus. Quite likely, the very first bishop in each town
would have arrived there from somewhere else. It is possible that subsequent bishops could still be appointed from the mother church that first sent out the mission, but rather quickly a form of election took place with the laity, or more likely the presbyter-counsellors that Ignatius referered to, taking charge. You can still see vestiges of such elections for the Bishop of Rome, with the Pope being elected by Cardinals, who technically are the bishops, parish priests and deacons of the Roman diocese. So, by the time of Ignatius, it is quite likely that an Order of priests have emerged to assist the bishop and to elect one when the see falls empty.
See part 2