Chapter 11 — Part I — Article IX (Of the Church)
Section 273. Q. What thoughts and remembrances should we associate with the name of the Eastern Church? A. In Paradise, planted in the East, was founded the first Church of our parents in innocence; and in the East, after the fall, was laid a new foundation of the Church of the redeemed, in the promise of a Saviour. In the East, in the land of Judæa, our Lord Jesus Christ, having finished the work of our salvation, laid the foundation of his own proper Christian Church: from thence she spread herself over the whole universe; and to this day the orthodox Catholic œcumenical faith, confirmed by the seven œcumenical Councils, is preserved unchanged in its original purity in the ancient Churches of the East, and in such as agree with them, as does by God's grace the Church of Russia.