"This is that holy Church which is without spot or wrinkle. For many others have gathered together Churches, as Marcion, and Valentinus, and Ebion, and Manichæus, and Arius, and all the other heretics. ... But of this Church which keeps the faith of Christ entire, hear what the Holy Spirit says in the Canticles, "My dove is one; the perfect one of her mother is one.""