1 Pedro 5
Cosmas Indicopleustes
1 Pedro 5:13
it was in the Roman dominions that the preaching of Christianity first became current in the days of the Apostles, and it was immediately afterwards extended to Persia by the Apostle Thaddaeus. And, to be sure we find this written in the Catholic Epistles: The Church that is in Babylon elect together with you, saluteth you — The Christian Topography, Book 2