The time had now come for Gregory, who was still a layman and father of two sons, to receive ordination; so he went to Caesarea, where Leontius ordained and consecrated him catholicos or vicar-general of Armenia.
4 The Nestorians may be said to have a fourfold ministry, for they reconsecrated a bishop when he was made catholicos or patriarch.
A renegade Armenian Catholicos of the 7th century named Isaac has preserved to us a document which sums up their tenets.
Not to change any doctrines held by them which are not contrary to that faith which the Holy Spirit, speaking through the Oecumenical Councils of the Undivided Church of Christ, has taught us as necessary to be believed by all Christians, but to strengthen an ancient Church, at the earnest request of the Catholicos, and with the knowledge and blessing of the Catholic patriarch of Antioch, one of the four patriarchs of the Holy Orthodox Eastern Church, and occupant of the Apostolic See from which the Church of the East revolted at the time of Nestorius."
Browne, The Catholicos of the East and his People (London, 1892); G.
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