St. Theodoret on Tradition

Blessed Theodoret of Cyr ca. 393-457

We are guarding the dogmatic teaching of the Apostles intact even to the present time…Handing this teaching down to us are not only the Apostles and the Prophets, but also those whose writings interpret their books, Ignatius, Eustathius, Athanasius, Basil, Gregory, John, and the other lights of the ecumene, and before these the holy Fathers gathered in Nicea, whose confession of faith we guard inviolate as a paternal inheritence. (Letter to Florentius)