8 I come now, dearest brother, to the character of Cornelius our colleague, that with us you may more justly know Cornelius, not from the lies of malignants and detractors, but from the judgment of the Lord God, who made him a bishop, and from the testimony of his fellow bishops, the whole number of whom has agreed with an absolute unanimity throughout the whole world. For—a thing which with laudable announcement commends our dearest Cornelius to God and Christ, and to His Church, and also to all his fellow priests—he was not one who on a sudden attained to the episcopate; but, promoted through all the ecclesiastical offices, and having often deserved well of the Lord in divine administrations, he ascended by all the grades of religious service to the lofty summit of the Priesthood.
Then, moreover, he did not either ask for the episcopate itself, nor did he wish it; nor, as others do when the swelling of their l arrogance and pride inflates them, did he seize upon it; but quiet otherwise, and meek and such as those are accustomed to be who are chosen of God to this office, having regard to the modesty of his virgin continency, and the humility of his inborn and guarded veneration, he did not, as some do, use force to be made a bishop, but he himself suffered compulsion, so as to be forced to receive the episcopal office.
And he was made bishop by very many of our colleagues who were then present in the city of Rome, who sent to us letters concerning his ordination, honourable and laudatory, and remarkable for their testimony in announcement of him. Moreover, Cornelius was made bishop by the judgment of God and of His Christ, by the testimony of almost all the clergy, by the suffrage of the people who were then present, and by the assembly of ancient priests and good men, when no one had been made so before him, when the place of Fabian, that is, when the place of Peter and the degree of the sacerdotal throne was vacant; which being occupied by the will of God, and established by the consent of all of us, whosoever now wishes to become a bishop, must needs be made from without; and he cannot have the ordination of the Church who does not hold the unity of the Church.
Whoever he may be, although greatly boasting about himself, and claiming very much for himself, he is profane, he is an alien, he is without. And as after the first there cannot be a second, whosoever is made after one who ought to be alone, is not second to him, but is in fact none at all.
Source: The Epistles of Cyprian (New Advent)