Paul gave qualifications for bishops (plural) and deacons. There were no singular bishops in the early church until Ignatius.
Hmmm…how early was that? Ignatius was a disciple of the Apostle Peter and the second bishop of Antioch after Peter departed for Rome. Sounds Like Bishops were on the scene pretty early…and within the lifetimes of several of the Apostles. Doesn’t this make the idea of Bishops “Apostolic”?
Additionally, Linus, Anacletus and Clement were all Bishops of Rome after Peter during the lifetime of the Apostle John.
You know Clement, don’t you? He’s mentioned in scripture (Philippians 4:3). Writing of Bishops and Apostolic Succession, Clement wrote:
Clement
“Through countryside and city [the apostles] preached, and they appointed their earliest converts, testing them by the Spirit, to be the bishops and deacons of future believers. Nor was this a novelty, for bishops and deacons had been written about a long time earlier. . . . Our apostles knew through our Lord Jesus Christ that there would be strife for the office of bishop. For this reason, therefore, having received perfect foreknowledge, they appointed those who have already been mentioned and afterwards added the further provision that, if they should die, other approved men should succeed to their ministry” (*Letter to the Corinthians *42:4–5, 44:1–3 [A.D. 80]).
Our apostles also knew, through our Lord Jesus Christ, that there would be strife on account of the office of the episcopate. For this reason, therefore, inasmuch as they had obtained a perfect fore-knowledge of this, they appointed those [ministers] already mentioned, and afterwards gave instructions, that when these should fall asleep, other approved men should succeed them in their ministry. We are of opinion, therefore, that those appointed by them,
or afterwards by other eminent men, with the consent of the whole church, and who have blamelessly served the flock of Christ, in a humble, peaceable, and disinterested spirit, and have for a long time possessed the good opinion of all, cannot be justly dismissed from the ministry. (
ibid.)
Later, Irenaeus, Bishop of Rome, wrote:
"
3The blessed apostles [Peter and Paul], having founded and built up the church [of Rome], they handed over the office of the episcopate to Linus. Paul makes mention of this Linus in the epistle to Timothy [2 Tim. 4:21]. To him succeeded Anencletus, and after him, in the third place from the apostles, Clement was chosen for the episcopate. He had seen the blessed apostles and was acquainted with them. It might be said that he still heard the echoes of the preaching of the apostles and had their traditions before his eyes. And not only he, for there were many still remaining who had been instructed by the apostles. In the time of Clement, no small dissension having arisen among the brethren in Corinth, the Church in Rome sent a very strong letter to the Corinthians, exhorting them to peace and renewing their faith. . . To this Clement, Evaristus succeeded. . . and now, in the twelfth place after the apostles, the lot of the episcopate [of Rome] has fallen to Eleutherus. In this order, and by the teaching of the apostles handed down in the Church, the preaching of the truth has come down to us.
“
4Polycarp also was not only instructed by apostles, and conversed with many who had seen Christ, but was also, by apostles in Asia, appointed bishop of the church in Smyrna, whom I also saw in my early youth, for he tarried [on earth] a very long time, and, when a very old man, gloriously and most nobly suffering martyrdom, departed this life, having always taught the things which he had learned from the apostles, and which the Church has handed down, and which alone are true. To these things all the Asiatic churches testify, as do also those men who have succeeded Polycarp down to the present time” (*Against Heresies *3:3:1-4 [A.D. 189])…
In scripture there is only the succession of truth, not of apostles, and this truth must be passed on by reliable men who are qualified to teach others also.
2 Timothy 2:2
And the **things you have heard me say **in the presence of many witnesses entrust to reliable men who will also be qualified to teach others.
Actually, there are quite a few people referred to as Apostles:
The Twelve + Matthias
Paul
Barnabas
Andronicus and Junias (Romans 16:7)
Epaphroditus (Phile 2:25)
Apollos
Silvanus and Timothy (1 Thess. 1:1 with 2:6)
However, in time, the Apostles passed from the scene and the leadership of the Church fell to their successors, the Bishops (
episkopoi). This article should help:
**Successors of the Apostles **
By Jimmy Akin
catholic.com/thisrock/2001/0107bt.asp