Clement of Rome
“Accept our counsel and you will have nothing to regret. . . . If anyone disobeys the things which have been said by him [Jesus] through us, let them know that they will involve themselves in no small danger. We, however, shall be innocent of this sin and will pray with entreaty and supplication that the Creator of all may keep unharmed the number of his elect (Letter to the Corinthians 58:2, 59:1A.D. 95]).”
St Irenaeus
"Peter and Paul, that church which has the tradition and the faith which comes down to us after having been announced to men by the apostles. With that church, because of its superior origin, all the churches must agree, that is, all the faithful in the whole world, and it is in her that the faithful everywhere have maintained the apostolic tradition (Against Heresies 3:3:2 [A.D. 189]).
Tertullian
"[T]he Lord said to Peter, “On this rock I will build my Church, I have given you the keys of the kingdom of heaven [and] whatever you shall have bound or loosed on earth will be bound or loosed in heaven” [Matt. 16:18-19]. … Upon you, he says, I will build my Church; and I will give **to you **the keys, not to the Church; and whatever you shall have bound or you shall have loosed, **not what they shall have bound or they **shall have loosed (Modesty 21:9-10 A.D. 220]).
Cyprian
“With a* false bishop appointed for themselves *by heretics, they dare even to set sail and carry letters from schismatics and blasphemers to the Chair of Peter and to the principal church [at Rome], in which sacerdotal unity has its source” (Epistle to Cornelius [Bishop of Rome] 59:14 [A.D. 252]).
Cyprian
The Lord says to Peter: “I say to you,” he says, “that you are Peter, and upon this rock I will build my Church” . . . On him he builds the Church, and to him he gives the command to feed the sheep John 21:17], and although he assigns a like power to all the apostles, yet he founded a single chair [cathedra], and he established by his own authority a source and an intrinsic reason for that unity. Indeed, the others were that also which Peter was , but a primacy is given to Peter, whereby it is made clear that there is but one Church and one chair. So too, all [the apostles] are shepherds, and the flock is shown to be one, fed by all the apostles in single-minded accord. If someone does not hold fast to this unity of Peter, can he imagine that he still holds the faith? If he [should] desert the chair of Peter upon whom the Church was built, can he still be confident that he is in the Church? (The Unity of the Catholic Church 4 [A.D. 251]).
I could go on and on. But I have to get to work.
None of these respond to the need for all patriarchates for there to be an ecumenical council. that’s the way the early Church worked.
Jon