added before the First Council of Constantinople. In its complete form it is now used in the Mass.
3. The Athanasian Creed was probably not composed by St. Athanasius, but is called by his name because it contains the doctrines so ably expounded and strenuously defended by him. It is aimed at the heresies of the fourth and fifth centuries, and dates back at least to the sixth or seventh century.
4. The Creed of Toledo, published by the sixth council of Toledo (A.D. 675), further develops the Athanasian Creed, and is the most complete of the authentic expositions of the dogmas of the Blessed Trinity and Incarnation. As it closely follows St. Augustine’s teaching, it might almost be called “St. Augustine’s Creed” with even more reason than the preceding creed is called the creed of St. Athanasius. See Denzinger, n. xxvi.
5. The Creed of Leo IX. is a free elaboration of the Nicene Creed, with some additions against Manichæans and Pelagians. See Denzinger, n. xxxix. It is still used at the consecration of Bishops.
6. The Creed of the Fourth Lateran Council, the famous caput Firmiter credimus, under Innocent III. (1215), which is the first Decretal in the Corpus Juris Canonici, is in substance similar to the foregoing, but further develops the doctrine concerning Sacrifice, Baptism, and particularly Transubstantiation. The subjoined condemnation of Abbot Joachim completes the dogmatic definition of the Holy Trinity. See Denzinger, n. lii.; also St. Thomas, Expositio Primæ et Secundæ Decretalis, Opuscc. xxiii. and xxiv.
7. The formula prescribed by the same Pope Innocent III. (1210) to the converts among the Waldenses, states more or less extensively the doctrine concerning the Sacraments, and also various matters of morals and discipline. Denzinger, n. liii.
8. The Confession of Faith made by Michael Palæologus in the Second Council of Lyons, 1274, accepted by Pope Gregory X., is based upon the Creed of Leo IX., but adds clauses containing the doctrine concerning the Four Last Things (Death, Judgment, Hell, Heaven), the Sacraments, and the Primacy of the Roman Church.
