The present text of the Creed of Constantinople was preserved and transmitted to us by the Council of Chalcedon (451 C.E.) and can be found in Richard A. Norris, Jr., The Christological Controversy, Sources of Christian Thought (Philadelphia: Fortress, 1980), p. 157. For scholarly discussions as to whether this creed actually derives from the Council of Constantinople, see Hanson, Search for the Christian Doctrine (Edinburgh: T & T Clark, 1988), pp. 812–815.