What contemporaneous well-established beliefs are you referring to? The ones you mention above?
Yes!
Re: the sacrifice of the Mass – From
this link: In the Didache or “Teaching of the Twelve Apostles”, the oldest post-Biblical literary monument (c. A.D. 96), not only is the “breaking of bread” (cf. Acts 20:7) referred to as a “sacrifice” (Thysia) and mention made of reconciliation with one’s enemy before the sacrifice (cf. Matthew 5:23), but the whole passage is crowned with an actual quotation of the prophecy of Malachias, which referred, as is well known, to an objective and real sacrifice (Didache, c. xiv).
Re: the importance of apostolic succession – To make sure that the apostles’ teachings would be passed down after the deaths of the apostles, Paul told Timothy, “[W]hat you have heard from me before many witnesses entrust to faithful men who will be able to teach others also” (2 Tim. 2:2). In this passage he refers to the first four generations of apostolic succession: his own generation, Timothy’s generation, the generation Timothy will teach, and the generation
they will teach.
The Church Fathers, who were links in that chain of succession, regularly appealed to apostolic succession as a test for whether Catholics or heretics had correct doctrine. This was necessary because heretics simply put their own interpretations, even bizarre ones, on Scripture. Clearly, something other than Scripture had to be used as an ultimate test of doctrine in these cases.
Re: the importance of Tradition – From
this link:The early Church historian J. N. D. Kelly, a Protestant, writes, “[W]here in practice was [the] apostolic testimony or tradition to be found? . . . The most obvious answer was that the apostles had committed it orally to the Church, where it had been handed down from generation to generation. . . . Unlike the alleged secret tradition of the Gnostics, it was entirely public and open, having been entrusted by the apostles to their successors, and by these in turn to those who followed them, and was visible in the Church for all who cared to look for it” (
Early Christian Doctrines, 37).
For the early Fathers, “the identity of the oral tradition with the original revelation is guaranteed by the unbroken succession of bishops in the great sees going back lineally to the apostles. . . . [A]n additional safeguard is supplied by the Holy Spirit, for the message committed was to the Church, and the Church is the home of the Spirit. Indeed, the Church’s bishops are . . . Spirit-endowed men who have been vouchsafed ‘an infallible charism of truth’” (ibid.).
Thus on the basis of experience the Fathers could be “profoundly convinced of the futility of arguing with heretics merely on the basis of Scripture. The skill and success with which they twisted its plain meaning made it impossible to reach any decisive conclusion in that field” (ibid., 41).
Re: the structure of the Pope, bishops, and priests – From
this link:The Church Fathers recognized that Jesus made Peter the Rock on which He would build his Church, that this gave Peter a special primacy, that Peter went to Rome, and that he left successors there. They also understood that Peter’s successors shared in his special authority or primacy.
In a wide variety of ways, the Fathers attest to the fact that the church of Rome was the central and most authoritative church. They attest to the Church’s reliance on Rome for advice, for mediation of disputes, and for guidance on doctrinal issues. They note, as Ignatius of Antioch does, that Rome “holds the presidency” among the other churches, and that, as Irenaeus explains, “because of its superior origin, all the churches must agree” with Rome. They are also clear on the fact that it is communion with Rome and the bishop of Rome that causes one to be in communion with the Catholic Church. This displays a recognition that, as Cyprian of Carthage puts it, Rome is “the principal church, in which sacerdotal unity has its source.”
Clement I, in the year 80, certainly implied that he had supremacy and universal jurisdiction when he wrote:“Owing to the sudden and repeated calamities and misfortunes which have befallen us, we must acknowledge that we have been somewhat tardy in turning our attention to the matters in dispute among you, beloved; and especially that abominable and unholy sedition, alien and foreign to the elect of God, which a few rash and self-willed persons have inflamed to such madness that your venerable and illustrious name, worthy to be loved by all men, has been greatly defamed. . . . Accept our counsel and you will have nothing to regret. . . . If anyone disobey the things which have been said by him [God] through us *, let them know that they will involve themselves in transgression and in no small danger. . . . You will afford us joy and gladness if being obedient to the things which we have written through the Holy Spirit, you will root out the wicked passion of jealousy” (*Letter to the Corinthians *1, 58—59, 63 [A.D. 80]).
Re: confession to a priest – Matthew 9:6-8 tells us:“But so that you may know that the Son of Man has authority on earth to forgive sins…” Then he said to the paralytic, “Get up, take your mat and go home.” And the man got up and went home. When the crowd saw this, they were filled with awe; and they praised God, who had given such authority to men." (note the plural).
After his resurrection, Jesus passed on his mission to forgive sins to his ministers, telling them, “As the Father has sent me, even so I send you. . . . Receive the Holy Spirit. If you forgive the sins of any, they are forgiven; if you retain the sins of any, they are retained”
Re: prayers to the saints – Yes, the communion of saints
was more than implied. The Bible
directs us to invoke those in heaven and ask them to pray with us. Thus in Psalms 103, we pray, “Bless the Lord, O you his angels, you mighty ones who do his word, hearkening to the voice of his word! Bless the Lord, all his hosts, his ministers that do his will!” (Ps. 103:20-21). And in Psalms 148 we pray, “Praise the Lord! Praise the Lord from the heavens, praise him in the heights! Praise him, all his angels, praise him, all his host!” (Ps. 148:1-2).
Not only do those in heaven pray with us, they also pray for us. In the book of Revelation, we read: “[An] angel came and stood at the altar [in heaven] with a golden censer; and he was given much incense to mingle with the prayers of all the saints upon the golden altar before the throne; and the smoke of the incense rose with the prayers of the saints from the hand of the angel before God” (Rev. 8:3-4).
And those in heaven who offer to God our prayers aren’t just angels, but humans as well. John sees that “the twenty-four elders [the leaders of the people of God in heaven] fell down before the Lamb, each holding a harp, and with golden bowls full of incense, which are the prayers of the saints” (Rev. 5:8). The simple fact is, as this passage shows: The saints in heaven offer to God the prayers of the saints on earth.
Re: prayers for the dead and purgatory – actually this is
not a later development as you (incorrectly) suppose that I imply. If a dead person is in heaven, they don’t need prayers, and if a dead person is in hell, they cannot be helped. So the only dead people who could possibly benefit from our prayers, are those in purgatory. That is why St. Paul prayed for Onisephorus in 2 Tim 1:18. If Onisephorus was in hell, prayers couldn’t help him, and if Onisephorus was in heaven, prayers wouldn’t be needed. So where else might Onisephorus be, that St Paul would pray for his soul? Purgatory.
Whether purgatory is a place or a process, it’s how we get from “all have sinned” (Rom. 3:23) to “nothing unclean shall enter heaven” (Rev. 21:27). Indeed, “If anyone’s work is burned up, he will suffer loss, though he himself will be saved, but only as through fire.” (1 Cor. 3:15) We don’t suffer loss in heaven, and there is no salvation in hell.
There are plenty of other examples of prayers for the dead (and the concomitant belief in purgatory) in writings that date back – in some cases – to the Apostolic Age itself.*